31887380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{953}}^1$

素因数の和:1208

約数の個数: 48

約数和(自身を含む): 76930560

約数和(自身を除く): 45043180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 239, 478, 953, 956, 1195, 1673, 1906, 2390, 3346, 3812, 4765, 4780, 6671, 6692, 8365, 9530, 13342, 16730, 19060, 26684, 33355, 33460, 66710, 133420, 227767, 455534, 911068, 1138835, 1594369, 2277670, 3188738, 4555340, 6377476, 7971845, 15943690, 31887380]

約数ペア:

[(1, 31887380), (2, 15943690), (4, 7971845), (5, 6377476), (7, 4555340), (10, 3188738), (14, 2277670), (20, 1594369), (28, 1138835), (35, 911068), (70, 455534), (140, 227767), (239, 133420), (478, 66710), (953, 33460), (956, 33355), (1195, 26684), (1673, 19060), (1906, 16730), (2390, 13342), (3346, 9530), (3812, 8365), (4765, 6692), (4780, 6671)]