78567880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2687}}^1$

素因数の和:2758

約数の個数: 64

約数和(自身を含む): 191600640

約数和(自身を除く): 113032760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 43, 68, 85, 86, 136, 170, 172, 215, 340, 344, 430, 680, 731, 860, 1462, 1720, 2687, 2924, 3655, 5374, 5848, 7310, 10748, 13435, 14620, 21496, 26870, 29240, 45679, 53740, 91358, 107480, 115541, 182716, 228395, 231082, 365432, 456790, 462164, 577705, 913580, 924328, 1155410, 1827160, 1964197, 2310820, 3928394, 4621640, 7856788, 9820985, 15713576, 19641970, 39283940, 78567880]

約数ペア:

[(1, 78567880), (2, 39283940), (4, 19641970), (5, 15713576), (8, 9820985), (10, 7856788), (17, 4621640), (20, 3928394), (34, 2310820), (40, 1964197), (43, 1827160), (68, 1155410), (85, 924328), (86, 913580), (136, 577705), (170, 462164), (172, 456790), (215, 365432), (340, 231082), (344, 228395), (430, 182716), (680, 115541), (731, 107480), (860, 91358), (1462, 53740), (1720, 45679), (2687, 29240), (2924, 26870), (3655, 21496), (5374, 14620), (5848, 13435), (7310, 10748)]