68815760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{66169}}^1$

素因数の和:66195

約数の個数: 40

約数和(自身を含む): 172306680

約数和(自身を除く): 103490920

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 66169, 132338, 264676, 330845, 529352, 661690, 860197, 1058704, 1323380, 1720394, 2646760, 3440788, 4300985, 5293520, 6881576, 8601970, 13763152, 17203940, 34407880, 68815760]

約数ペア:

[(1, 68815760), (2, 34407880), (4, 17203940), (5, 13763152), (8, 8601970), (10, 6881576), (13, 5293520), (16, 4300985), (20, 3440788), (26, 2646760), (40, 1720394), (52, 1323380), (65, 1058704), (80, 860197), (104, 661690), (130, 529352), (208, 330845), (260, 264676), (520, 132338), (1040, 66169)]