77814920

素因数分解:

$2^3\times 5^1\times {\mathrm{631}}^1\times {\mathrm{3083}}^1$

素因数の和:3725

約数の個数: 32

約数和(自身を含む): 175417920

約数和(自身を除く): 97603000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 631, 1262, 2524, 3083, 3155, 5048, 6166, 6310, 12332, 12620, 15415, 24664, 25240, 30830, 61660, 123320, 1945373, 3890746, 7781492, 9726865, 15562984, 19453730, 38907460, 77814920]

約数ペア:

[(1, 77814920), (2, 38907460), (4, 19453730), (5, 15562984), (8, 9726865), (10, 7781492), (20, 3890746), (40, 1945373), (631, 123320), (1262, 61660), (2524, 30830), (3083, 25240), (3155, 24664), (5048, 15415), (6166, 12620), (6310, 12332)]