7975289980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{189257}}^1$

素因数の和:189323

約数の個数: 72

約数和(自身を含む): 19935680688

約数和(自身を除く): 11960390708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 140, 172, 196, 215, 245, 301, 430, 490, 602, 860, 980, 1204, 1505, 2107, 3010, 4214, 6020, 8428, 10535, 21070, 42140, 189257, 378514, 757028, 946285, 1324799, 1892570, 2649598, 3785140, 5299196, 6623995, 8138051, 9273593, 13247990, 16276102, 18547186, 26495980, 32552204, 37094372, 40690255, 46367965, 56966357, 81380510, 92735930, 113932714, 162761020, 185471860, 227865428, 284831785, 398764499, 569663570, 797528998, 1139327140, 1595057996, 1993822495, 3987644990, 7975289980]

約数ペア:

[(1, 7975289980), (2, 3987644990), (4, 1993822495), (5, 1595057996), (7, 1139327140), (10, 797528998), (14, 569663570), (20, 398764499), (28, 284831785), (35, 227865428), (43, 185471860), (49, 162761020), (70, 113932714), (86, 92735930), (98, 81380510), (140, 56966357), (172, 46367965), (196, 40690255), (215, 37094372), (245, 32552204), (301, 26495980), (430, 18547186), (490, 16276102), (602, 13247990), (860, 9273593), (980, 8138051), (1204, 6623995), (1505, 5299196), (2107, 3785140), (3010, 2649598), (4214, 1892570), (6020, 1324799), (8428, 946285), (10535, 757028), (21070, 378514), (42140, 189257)]