661761830

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{757}}^1$

素因数の和:933

約数の個数: 64

約数和(自身を含む): 1296725760

約数和(自身を除く): 634963930

約数列:

[1, 2, 5, 10, 19, 38, 43, 86, 95, 107, 190, 214, 215, 430, 535, 757, 817, 1070, 1514, 1634, 2033, 3785, 4066, 4085, 4601, 7570, 8170, 9202, 10165, 14383, 20330, 23005, 28766, 32551, 46010, 65102, 71915, 80999, 87419, 143830, 161998, 162755, 174838, 325510, 404995, 437095, 618469, 809990, 874190, 1236938, 1538981, 3077962, 3092345, 3482957, 6184690, 6965914, 7694905, 15389810, 17414785, 34829570, 66176183, 132352366, 330880915, 661761830]

約数ペア:

[(1, 661761830), (2, 330880915), (5, 132352366), (10, 66176183), (19, 34829570), (38, 17414785), (43, 15389810), (86, 7694905), (95, 6965914), (107, 6184690), (190, 3482957), (214, 3092345), (215, 3077962), (430, 1538981), (535, 1236938), (757, 874190), (817, 809990), (1070, 618469), (1514, 437095), (1634, 404995), (2033, 325510), (3785, 174838), (4066, 162755), (4085, 161998), (4601, 143830), (7570, 87419), (8170, 80999), (9202, 71915), (10165, 65102), (14383, 46010), (20330, 32551), (23005, 28766)]