28486120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1889}}^1$

素因数の和:1942

約数の個数: 64

約数和(自身を含む): 71442000

約数和(自身を除く): 42955880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 40, 52, 58, 65, 104, 116, 130, 145, 232, 260, 290, 377, 520, 580, 754, 1160, 1508, 1885, 1889, 3016, 3770, 3778, 7540, 7556, 9445, 15080, 15112, 18890, 24557, 37780, 49114, 54781, 75560, 98228, 109562, 122785, 196456, 219124, 245570, 273905, 438248, 491140, 547810, 712153, 982280, 1095620, 1424306, 2191240, 2848612, 3560765, 5697224, 7121530, 14243060, 28486120]

約数ペア:

[(1, 28486120), (2, 14243060), (4, 7121530), (5, 5697224), (8, 3560765), (10, 2848612), (13, 2191240), (20, 1424306), (26, 1095620), (29, 982280), (40, 712153), (52, 547810), (58, 491140), (65, 438248), (104, 273905), (116, 245570), (130, 219124), (145, 196456), (232, 122785), (260, 109562), (290, 98228), (377, 75560), (520, 54781), (580, 49114), (754, 37780), (1160, 24557), (1508, 18890), (1885, 15112), (1889, 15080), (3016, 9445), (3770, 7556), (3778, 7540)]