248977430

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61781}}^1$

素因数の和:61832

約数の個数: 32

約数和(自身を含む): 498210048

約数和(自身を除く): 249232618

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 61781, 123562, 308905, 617810, 803153, 1606306, 1915211, 3830422, 4015765, 8031530, 9576055, 19152110, 24897743, 49795486, 124488715, 248977430]

約数ペア:

[(1, 248977430), (2, 124488715), (5, 49795486), (10, 24897743), (13, 19152110), (26, 9576055), (31, 8031530), (62, 4015765), (65, 3830422), (130, 1915211), (155, 1606306), (310, 803153), (403, 617810), (806, 308905), (2015, 123562), (4030, 61781)]