81717090

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{809}}^1$

素因数の和:876

約数の個数: 128

約数和(自身を含む): 248209920

約数和(自身を除く): 166492830

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 37, 39, 42, 65, 70, 74, 78, 91, 105, 111, 130, 182, 185, 195, 210, 222, 259, 273, 370, 390, 455, 481, 518, 546, 555, 777, 809, 910, 962, 1110, 1295, 1365, 1443, 1554, 1618, 2405, 2427, 2590, 2730, 2886, 3367, 3885, 4045, 4810, 4854, 5663, 6734, 7215, 7770, 8090, 10101, 10517, 11326, 12135, 14430, 16835, 16989, 20202, 21034, 24270, 28315, 29933, 31551, 33670, 33978, 50505, 52585, 56630, 59866, 63102, 73619, 84945, 89799, 101010, 105170, 147238, 149665, 157755, 169890, 179598, 209531, 220857, 299330, 315510, 368095, 389129, 419062, 441714, 448995, 628593, 736190, 778258, 897990, 1047655, 1104285, 1167387, 1257186, 1945645, 2095310, 2208570, 2334774, 2723903, 3142965, 3891290, 5447806, 5836935, 6285930, 8171709, 11673870, 13619515, 16343418, 27239030, 40858545, 81717090]

約数ペア:

[(1, 81717090), (2, 40858545), (3, 27239030), (5, 16343418), (6, 13619515), (7, 11673870), (10, 8171709), (13, 6285930), (14, 5836935), (15, 5447806), (21, 3891290), (26, 3142965), (30, 2723903), (35, 2334774), (37, 2208570), (39, 2095310), (42, 1945645), (65, 1257186), (70, 1167387), (74, 1104285), (78, 1047655), (91, 897990), (105, 778258), (111, 736190), (130, 628593), (182, 448995), (185, 441714), (195, 419062), (210, 389129), (222, 368095), (259, 315510), (273, 299330), (370, 220857), (390, 209531), (455, 179598), (481, 169890), (518, 157755), (546, 149665), (555, 147238), (777, 105170), (809, 101010), (910, 89799), (962, 84945), (1110, 73619), (1295, 63102), (1365, 59866), (1443, 56630), (1554, 52585), (1618, 50505), (2405, 33978), (2427, 33670), (2590, 31551), (2730, 29933), (2886, 28315), (3367, 24270), (3885, 21034), (4045, 20202), (4810, 16989), (4854, 16835), (5663, 14430), (6734, 12135), (7215, 11326), (7770, 10517), (8090, 10101)]