31428540

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1$

素因数の和:90

約数の個数: 288

約数和(自身を含む): 118870080

約数和(自身を除く): 87441540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 15, 18, 20, 22, 26, 27, 30, 33, 36, 37, 39, 44, 45, 52, 54, 55, 60, 65, 66, 74, 78, 90, 99, 108, 110, 111, 117, 121, 130, 132, 135, 143, 148, 156, 165, 180, 185, 195, 198, 220, 222, 234, 242, 260, 270, 286, 297, 330, 333, 351, 363, 370, 390, 396, 407, 429, 444, 468, 481, 484, 495, 540, 555, 572, 585, 594, 605, 660, 666, 702, 715, 726, 740, 780, 814, 858, 962, 990, 999, 1089, 1110, 1170, 1188, 1210, 1221, 1287, 1332, 1404, 1430, 1443, 1452, 1485, 1573, 1628, 1665, 1716, 1755, 1815, 1924, 1980, 1998, 2035, 2145, 2178, 2220, 2340, 2405, 2420, 2442, 2574, 2860, 2886, 2970, 3146, 3267, 3330, 3510, 3630, 3663, 3861, 3996, 4070, 4290, 4329, 4356, 4477, 4719, 4810, 4884, 4995, 5148, 5291, 5445, 5772, 5940, 6105, 6292, 6435, 6534, 6660, 7020, 7215, 7260, 7326, 7722, 7865, 8140, 8580, 8658, 8954, 9438, 9620, 9990, 10582, 10890, 10989, 12210, 12870, 12987, 13068, 13431, 14157, 14430, 14652, 15444, 15730, 15873, 16335, 17316, 17908, 18315, 18876, 19305, 19980, 21164, 21645, 21780, 21978, 22385, 23595, 24420, 25740, 25974, 26455, 26862, 28314, 28860, 31460, 31746, 32670, 36630, 38610, 40293, 42471, 43290, 43956, 44770, 47190, 47619, 51948, 52910, 53724, 54945, 56628, 58201, 63492, 64935, 65340, 67155, 70785, 73260, 77220, 79365, 80586, 84942, 86580, 89540, 94380, 95238, 105820, 109890, 116402, 120879, 129870, 134310, 141570, 142857, 158730, 161172, 169884, 174603, 190476, 201465, 212355, 219780, 232804, 238095, 241758, 259740, 268620, 283140, 285714, 291005, 317460, 349206, 402930, 424710, 476190, 483516, 523809, 571428, 582010, 604395, 698412, 714285, 805860, 849420, 873015, 952380, 1047618, 1164020, 1208790, 1428570, 1571427, 1746030, 2095236, 2417580, 2619045, 2857140, 3142854, 3492060, 5238090, 6285708, 7857135, 10476180, 15714270, 31428540]

約数ペア:

[(1, 31428540), (2, 15714270), (3, 10476180), (4, 7857135), (5, 6285708), (6, 5238090), (9, 3492060), (10, 3142854), (11, 2857140), (12, 2619045), (13, 2417580), (15, 2095236), (18, 1746030), (20, 1571427), (22, 1428570), (26, 1208790), (27, 1164020), (30, 1047618), (33, 952380), (36, 873015), (37, 849420), (39, 805860), (44, 714285), (45, 698412), (52, 604395), (54, 582010), (55, 571428), (60, 523809), (65, 483516), (66, 476190), (74, 424710), (78, 402930), (90, 349206), (99, 317460), (108, 291005), (110, 285714), (111, 283140), (117, 268620), (121, 259740), (130, 241758), (132, 238095), (135, 232804), (143, 219780), (148, 212355), (156, 201465), (165, 190476), (180, 174603), (185, 169884), (195, 161172), (198, 158730), (220, 142857), (222, 141570), (234, 134310), (242, 129870), (260, 120879), (270, 116402), (286, 109890), (297, 105820), (330, 95238), (333, 94380), (351, 89540), (363, 86580), (370, 84942), (390, 80586), (396, 79365), (407, 77220), (429, 73260), (444, 70785), (468, 67155), (481, 65340), (484, 64935), (495, 63492), (540, 58201), (555, 56628), (572, 54945), (585, 53724), (594, 52910), (605, 51948), (660, 47619), (666, 47190), (702, 44770), (715, 43956), (726, 43290), (740, 42471), (780, 40293), (814, 38610), (858, 36630), (962, 32670), (990, 31746), (999, 31460), (1089, 28860), (1110, 28314), (1170, 26862), (1188, 26455), (1210, 25974), (1221, 25740), (1287, 24420), (1332, 23595), (1404, 22385), (1430, 21978), (1443, 21780), (1452, 21645), (1485, 21164), (1573, 19980), (1628, 19305), (1665, 18876), (1716, 18315), (1755, 17908), (1815, 17316), (1924, 16335), (1980, 15873), (1998, 15730), (2035, 15444), (2145, 14652), (2178, 14430), (2220, 14157), (2340, 13431), (2405, 13068), (2420, 12987), (2442, 12870), (2574, 12210), (2860, 10989), (2886, 10890), (2970, 10582), (3146, 9990), (3267, 9620), (3330, 9438), (3510, 8954), (3630, 8658), (3663, 8580), (3861, 8140), (3996, 7865), (4070, 7722), (4290, 7326), (4329, 7260), (4356, 7215), (4477, 7020), (4719, 6660), (4810, 6534), (4884, 6435), (4995, 6292), (5148, 6105), (5291, 5940), (5445, 5772)]