78213260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{461}}^1\times {\mathrm{499}}^1$

素因数の和:986

約数の個数: 48

約数和(自身を含む): 174636000

約数和(自身を除く): 96422740

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 461, 499, 922, 998, 1844, 1996, 2305, 2495, 4610, 4990, 7837, 8483, 9220, 9980, 15674, 16966, 31348, 33932, 39185, 42415, 78370, 84830, 156740, 169660, 230039, 460078, 920156, 1150195, 2300390, 3910663, 4600780, 7821326, 15642652, 19553315, 39106630, 78213260]

約数ペア:

[(1, 78213260), (2, 39106630), (4, 19553315), (5, 15642652), (10, 7821326), (17, 4600780), (20, 3910663), (34, 2300390), (68, 1150195), (85, 920156), (170, 460078), (340, 230039), (461, 169660), (499, 156740), (922, 84830), (998, 78370), (1844, 42415), (1996, 39185), (2305, 33932), (2495, 31348), (4610, 16966), (4990, 15674), (7837, 9980), (8483, 9220)]