870858920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{283}}^1\times {\mathrm{4049}}^1$

素因数の和:4362

約数の個数: 64

約数和(自身を含む): 2070360000

約数和(自身を除く): 1199501080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 283, 380, 566, 760, 1132, 1415, 2264, 2830, 4049, 5377, 5660, 8098, 10754, 11320, 16196, 20245, 21508, 26885, 32392, 40490, 43016, 53770, 76931, 80980, 107540, 153862, 161960, 215080, 307724, 384655, 615448, 769310, 1145867, 1538620, 2291734, 3077240, 4583468, 5729335, 9166936, 11458670, 21771473, 22917340, 43542946, 45834680, 87085892, 108857365, 174171784, 217714730, 435429460, 870858920]

約数ペア:

[(1, 870858920), (2, 435429460), (4, 217714730), (5, 174171784), (8, 108857365), (10, 87085892), (19, 45834680), (20, 43542946), (38, 22917340), (40, 21771473), (76, 11458670), (95, 9166936), (152, 5729335), (190, 4583468), (283, 3077240), (380, 2291734), (566, 1538620), (760, 1145867), (1132, 769310), (1415, 615448), (2264, 384655), (2830, 307724), (4049, 215080), (5377, 161960), (5660, 153862), (8098, 107540), (10754, 80980), (11320, 76931), (16196, 53770), (20245, 43016), (21508, 40490), (26885, 32392)]