78400940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{293}}^1\times {\mathrm{787}}^1$

素因数の和:1106

約数の個数: 48

約数和(自身を含む): 175144032

約数和(自身を除く): 96743092

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 293, 340, 586, 787, 1172, 1465, 1574, 2930, 3148, 3935, 4981, 5860, 7870, 9962, 13379, 15740, 19924, 24905, 26758, 49810, 53516, 66895, 99620, 133790, 230591, 267580, 461182, 922364, 1152955, 2305910, 3920047, 4611820, 7840094, 15680188, 19600235, 39200470, 78400940]

約数ペア:

[(1, 78400940), (2, 39200470), (4, 19600235), (5, 15680188), (10, 7840094), (17, 4611820), (20, 3920047), (34, 2305910), (68, 1152955), (85, 922364), (170, 461182), (293, 267580), (340, 230591), (586, 133790), (787, 99620), (1172, 66895), (1465, 53516), (1574, 49810), (2930, 26758), (3148, 24905), (3935, 19924), (4981, 15740), (5860, 13379), (7870, 9962)]