40719980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{1123}}^1$

素因数の和:1183

約数の個数: 72

約数和(自身を含む): 102252528

約数和(自身を除く): 61532548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 49, 70, 74, 98, 140, 148, 185, 196, 245, 259, 370, 490, 518, 740, 980, 1036, 1123, 1295, 1813, 2246, 2590, 3626, 4492, 5180, 5615, 7252, 7861, 9065, 11230, 15722, 18130, 22460, 31444, 36260, 39305, 41551, 55027, 78610, 83102, 110054, 157220, 166204, 207755, 220108, 275135, 290857, 415510, 550270, 581714, 831020, 1100540, 1163428, 1454285, 2035999, 2908570, 4071998, 5817140, 8143996, 10179995, 20359990, 40719980]

約数ペア:

[(1, 40719980), (2, 20359990), (4, 10179995), (5, 8143996), (7, 5817140), (10, 4071998), (14, 2908570), (20, 2035999), (28, 1454285), (35, 1163428), (37, 1100540), (49, 831020), (70, 581714), (74, 550270), (98, 415510), (140, 290857), (148, 275135), (185, 220108), (196, 207755), (245, 166204), (259, 157220), (370, 110054), (490, 83102), (518, 78610), (740, 55027), (980, 41551), (1036, 39305), (1123, 36260), (1295, 31444), (1813, 22460), (2246, 18130), (2590, 15722), (3626, 11230), (4492, 9065), (5180, 7861), (5615, 7252)]