77866120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2663}}^1$

素因数の和:2734

約数の個数: 64

約数和(自身を含む): 189889920

約数和(自身を除く): 112023800

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, 2663, 2924, 3655, 5326, 5848, 7310, 10652, 13315, 14620, 21304, 26630, 29240, 45271, 53260, 90542, 106520, 114509, 181084, 226355, 229018, 362168, 452710, 458036, 572545, 905420, 916072, 1145090, 1810840, 1946653, 2290180, 3893306, 4580360, 7786612, 9733265, 15573224, 19466530, 38933060, 77866120]

約数ペア:

[(1, 77866120), (2, 38933060), (4, 19466530), (5, 15573224), (8, 9733265), (10, 7786612), (17, 4580360), (20, 3893306), (34, 2290180), (40, 1946653), (43, 1810840), (68, 1145090), (85, 916072), (86, 905420), (136, 572545), (170, 458036), (172, 452710), (215, 362168), (340, 229018), (344, 226355), (430, 181084), (680, 114509), (731, 106520), (860, 90542), (1462, 53260), (1720, 45271), (2663, 29240), (2924, 26630), (3655, 21304), (5326, 14620), (5848, 13315), (7310, 10652)]