256406580

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:136

約数の個数: 288

約数和(自身を含む): 891233280

約数和(自身を除く): 634826700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 31, 34, 36, 45, 51, 53, 54, 60, 62, 68, 85, 90, 93, 102, 106, 108, 124, 135, 153, 155, 159, 170, 180, 186, 204, 212, 255, 265, 270, 279, 289, 306, 310, 318, 340, 372, 459, 465, 477, 510, 527, 530, 540, 558, 578, 612, 620, 636, 765, 795, 837, 867, 901, 918, 930, 954, 1020, 1054, 1060, 1116, 1156, 1395, 1431, 1445, 1530, 1581, 1590, 1643, 1674, 1734, 1802, 1836, 1860, 1908, 2108, 2295, 2385, 2601, 2635, 2703, 2790, 2862, 2890, 3060, 3162, 3180, 3286, 3348, 3468, 3604, 4185, 4335, 4505, 4590, 4743, 4770, 4929, 5202, 5270, 5406, 5580, 5724, 5780, 6324, 6572, 7155, 7803, 7905, 8109, 8215, 8370, 8670, 8959, 9010, 9180, 9486, 9540, 9858, 10404, 10540, 10812, 13005, 13515, 14229, 14310, 14787, 15317, 15606, 15810, 16218, 16430, 16740, 17340, 17918, 18020, 18972, 19716, 23715, 24327, 24645, 26010, 26877, 27030, 27931, 28458, 28620, 29574, 30634, 31212, 31620, 32436, 32860, 35836, 39015, 40545, 44361, 44795, 45951, 47430, 48654, 49290, 52020, 53754, 54060, 55862, 56916, 59148, 61268, 71145, 73935, 76585, 78030, 80631, 81090, 83793, 88722, 89590, 91902, 94860, 97308, 98580, 107508, 111724, 121635, 134385, 137853, 139655, 142290, 147870, 153170, 156060, 161262, 162180, 167586, 177444, 179180, 183804, 221805, 229755, 241893, 243270, 251379, 268770, 275706, 279310, 284580, 295740, 306340, 322524, 335172, 403155, 413559, 418965, 443610, 459510, 474827, 483786, 486540, 502758, 537540, 551412, 558620, 689265, 754137, 806310, 827118, 837930, 887220, 919020, 949654, 967572, 1005516, 1209465, 1256895, 1378530, 1424481, 1508274, 1612620, 1654236, 1675860, 1899308, 2067795, 2374135, 2418930, 2513790, 2757060, 2848962, 3016548, 3770685, 4135590, 4273443, 4748270, 4837860, 5027580, 5697924, 7122405, 7541370, 8271180, 8546886, 9496540, 12820329, 14244810, 15082740, 17093772, 21367215, 25640658, 28489620, 42734430, 51281316, 64101645, 85468860, 128203290, 256406580]

約数ペア:

[(1, 256406580), (2, 128203290), (3, 85468860), (4, 64101645), (5, 51281316), (6, 42734430), (9, 28489620), (10, 25640658), (12, 21367215), (15, 17093772), (17, 15082740), (18, 14244810), (20, 12820329), (27, 9496540), (30, 8546886), (31, 8271180), (34, 7541370), (36, 7122405), (45, 5697924), (51, 5027580), (53, 4837860), (54, 4748270), (60, 4273443), (62, 4135590), (68, 3770685), (85, 3016548), (90, 2848962), (93, 2757060), (102, 2513790), (106, 2418930), (108, 2374135), (124, 2067795), (135, 1899308), (153, 1675860), (155, 1654236), (159, 1612620), (170, 1508274), (180, 1424481), (186, 1378530), (204, 1256895), (212, 1209465), (255, 1005516), (265, 967572), (270, 949654), (279, 919020), (289, 887220), (306, 837930), (310, 827118), (318, 806310), (340, 754137), (372, 689265), (459, 558620), (465, 551412), (477, 537540), (510, 502758), (527, 486540), (530, 483786), (540, 474827), (558, 459510), (578, 443610), (612, 418965), (620, 413559), (636, 403155), (765, 335172), (795, 322524), (837, 306340), (867, 295740), (901, 284580), (918, 279310), (930, 275706), (954, 268770), (1020, 251379), (1054, 243270), (1060, 241893), (1116, 229755), (1156, 221805), (1395, 183804), (1431, 179180), (1445, 177444), (1530, 167586), (1581, 162180), (1590, 161262), (1643, 156060), (1674, 153170), (1734, 147870), (1802, 142290), (1836, 139655), (1860, 137853), (1908, 134385), (2108, 121635), (2295, 111724), (2385, 107508), (2601, 98580), (2635, 97308), (2703, 94860), (2790, 91902), (2862, 89590), (2890, 88722), (3060, 83793), (3162, 81090), (3180, 80631), (3286, 78030), (3348, 76585), (3468, 73935), (3604, 71145), (4185, 61268), (4335, 59148), (4505, 56916), (4590, 55862), (4743, 54060), (4770, 53754), (4929, 52020), (5202, 49290), (5270, 48654), (5406, 47430), (5580, 45951), (5724, 44795), (5780, 44361), (6324, 40545), (6572, 39015), (7155, 35836), (7803, 32860), (7905, 32436), (8109, 31620), (8215, 31212), (8370, 30634), (8670, 29574), (8959, 28620), (9010, 28458), (9180, 27931), (9486, 27030), (9540, 26877), (9858, 26010), (10404, 24645), (10540, 24327), (10812, 23715), (13005, 19716), (13515, 18972), (14229, 18020), (14310, 17918), (14787, 17340), (15317, 16740), (15606, 16430), (15810, 16218)]