157071880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{7901}}^1$

素因数の和:7990

約数の個数: 64

約数和(自身を含む): 409639680

約数和(自身を除く): 252567800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1420, 1988, 2485, 2840, 3976, 4970, 7901, 9940, 15802, 19880, 31604, 39505, 55307, 63208, 79010, 110614, 158020, 221228, 276535, 316040, 442456, 553070, 560971, 1106140, 1121942, 2212280, 2243884, 2804855, 3926797, 4487768, 5609710, 7853594, 11219420, 15707188, 19633985, 22438840, 31414376, 39267970, 78535940, 157071880]

約数ペア:

[(1, 157071880), (2, 78535940), (4, 39267970), (5, 31414376), (7, 22438840), (8, 19633985), (10, 15707188), (14, 11219420), (20, 7853594), (28, 5609710), (35, 4487768), (40, 3926797), (56, 2804855), (70, 2243884), (71, 2212280), (140, 1121942), (142, 1106140), (280, 560971), (284, 553070), (355, 442456), (497, 316040), (568, 276535), (710, 221228), (994, 158020), (1420, 110614), (1988, 79010), (2485, 63208), (2840, 55307), (3976, 39505), (4970, 31604), (7901, 19880), (9940, 15802)]