87680440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2683}}^1$

素因数の和:2756

約数の個数: 64

約数和(自身を含む): 212572800

約数和(自身を除く): 124892360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 76, 86, 95, 152, 172, 190, 215, 344, 380, 430, 760, 817, 860, 1634, 1720, 2683, 3268, 4085, 5366, 6536, 8170, 10732, 13415, 16340, 21464, 26830, 32680, 50977, 53660, 101954, 107320, 115369, 203908, 230738, 254885, 407816, 461476, 509770, 576845, 922952, 1019540, 1153690, 2039080, 2192011, 2307380, 4384022, 4614760, 8768044, 10960055, 17536088, 21920110, 43840220, 87680440]

約数ペア:

[(1, 87680440), (2, 43840220), (4, 21920110), (5, 17536088), (8, 10960055), (10, 8768044), (19, 4614760), (20, 4384022), (38, 2307380), (40, 2192011), (43, 2039080), (76, 1153690), (86, 1019540), (95, 922952), (152, 576845), (172, 509770), (190, 461476), (215, 407816), (344, 254885), (380, 230738), (430, 203908), (760, 115369), (817, 107320), (860, 101954), (1634, 53660), (1720, 50977), (2683, 32680), (3268, 26830), (4085, 21464), (5366, 16340), (6536, 13415), (8170, 10732)]