30211220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{887}}^1$

素因数の和:1040

約数の個数: 48

約数和(自身を含む): 68923008

約数和(自身を除く): 38711788

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 131, 260, 262, 524, 655, 887, 1310, 1703, 1774, 2620, 3406, 3548, 4435, 6812, 8515, 8870, 11531, 17030, 17740, 23062, 34060, 46124, 57655, 115310, 116197, 230620, 232394, 464788, 580985, 1161970, 1510561, 2323940, 3021122, 6042244, 7552805, 15105610, 30211220]

約数ペア:

[(1, 30211220), (2, 15105610), (4, 7552805), (5, 6042244), (10, 3021122), (13, 2323940), (20, 1510561), (26, 1161970), (52, 580985), (65, 464788), (130, 232394), (131, 230620), (260, 116197), (262, 115310), (524, 57655), (655, 46124), (887, 34060), (1310, 23062), (1703, 17740), (1774, 17030), (2620, 11531), (3406, 8870), (3548, 8515), (4435, 6812)]