39151720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{23873}}^1$

素因数の和:23925

約数の個数: 32

約数和(自身を含む): 90243720

約数和(自身を除く): 51092000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 23873, 47746, 95492, 119365, 190984, 238730, 477460, 954920, 978793, 1957586, 3915172, 4893965, 7830344, 9787930, 19575860, 39151720]

約数ペア:

[(1, 39151720), (2, 19575860), (4, 9787930), (5, 7830344), (8, 4893965), (10, 3915172), (20, 1957586), (40, 978793), (41, 954920), (82, 477460), (164, 238730), (205, 190984), (328, 119365), (410, 95492), (820, 47746), (1640, 23873)]