66560720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{26839}}^1$

素因数の和:26883

約数の個数: 40

約数和(自身を含む): 159751680

約数和(自身を除く): 93190960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 26839, 53678, 107356, 134195, 214712, 268390, 429424, 536780, 832009, 1073560, 1664018, 2147120, 3328036, 4160045, 6656072, 8320090, 13312144, 16640180, 33280360, 66560720]

約数ペア:

[(1, 66560720), (2, 33280360), (4, 16640180), (5, 13312144), (8, 8320090), (10, 6656072), (16, 4160045), (20, 3328036), (31, 2147120), (40, 1664018), (62, 1073560), (80, 832009), (124, 536780), (155, 429424), (248, 268390), (310, 214712), (496, 134195), (620, 107356), (1240, 53678), (2480, 26839)]