28489620

素因数分解:

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

素因数の和:130

約数の個数: 144

約数和(自身を含む): 89123328

約数和(自身を除く): 60633708

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 31, 34, 51, 53, 60, 62, 68, 85, 93, 102, 106, 124, 155, 159, 170, 186, 204, 212, 255, 265, 289, 310, 318, 340, 372, 465, 510, 527, 530, 578, 620, 636, 795, 867, 901, 930, 1020, 1054, 1060, 1156, 1445, 1581, 1590, 1643, 1734, 1802, 1860, 2108, 2635, 2703, 2890, 3162, 3180, 3286, 3468, 3604, 4335, 4505, 4929, 5270, 5406, 5780, 6324, 6572, 7905, 8215, 8670, 8959, 9010, 9858, 10540, 10812, 13515, 15317, 15810, 16430, 17340, 17918, 18020, 19716, 24645, 26877, 27030, 27931, 30634, 31620, 32860, 35836, 44795, 45951, 49290, 53754, 54060, 55862, 61268, 76585, 83793, 89590, 91902, 98580, 107508, 111724, 134385, 139655, 153170, 167586, 179180, 183804, 229755, 268770, 279310, 306340, 335172, 418965, 459510, 474827, 537540, 558620, 837930, 919020, 949654, 1424481, 1675860, 1899308, 2374135, 2848962, 4748270, 5697924, 7122405, 9496540, 14244810, 28489620]

約数ペア:

[(1, 28489620), (2, 14244810), (3, 9496540), (4, 7122405), (5, 5697924), (6, 4748270), (10, 2848962), (12, 2374135), (15, 1899308), (17, 1675860), (20, 1424481), (30, 949654), (31, 919020), (34, 837930), (51, 558620), (53, 537540), (60, 474827), (62, 459510), (68, 418965), (85, 335172), (93, 306340), (102, 279310), (106, 268770), (124, 229755), (155, 183804), (159, 179180), (170, 167586), (186, 153170), (204, 139655), (212, 134385), (255, 111724), (265, 107508), (289, 98580), (310, 91902), (318, 89590), (340, 83793), (372, 76585), (465, 61268), (510, 55862), (527, 54060), (530, 53754), (578, 49290), (620, 45951), (636, 44795), (795, 35836), (867, 32860), (901, 31620), (930, 30634), (1020, 27931), (1054, 27030), (1060, 26877), (1156, 24645), (1445, 19716), (1581, 18020), (1590, 17918), (1643, 17340), (1734, 16430), (1802, 15810), (1860, 15317), (2108, 13515), (2635, 10812), (2703, 10540), (2890, 9858), (3162, 9010), (3180, 8959), (3286, 8670), (3468, 8215), (3604, 7905), (4335, 6572), (4505, 6324), (4929, 5780), (5270, 5406)]