78908620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{1103}}^1$

素因数の和:1199

約数の個数: 72

約数和(自身を含む): 195580224

約数和(自身を除く): 116671604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 73, 98, 140, 146, 196, 245, 292, 365, 490, 511, 730, 980, 1022, 1103, 1460, 2044, 2206, 2555, 3577, 4412, 5110, 5515, 7154, 7721, 10220, 11030, 14308, 15442, 17885, 22060, 30884, 35770, 38605, 54047, 71540, 77210, 80519, 108094, 154420, 161038, 216188, 270235, 322076, 402595, 540470, 563633, 805190, 1080940, 1127266, 1610380, 2254532, 2818165, 3945431, 5636330, 7890862, 11272660, 15781724, 19727155, 39454310, 78908620]

約数ペア:

[(1, 78908620), (2, 39454310), (4, 19727155), (5, 15781724), (7, 11272660), (10, 7890862), (14, 5636330), (20, 3945431), (28, 2818165), (35, 2254532), (49, 1610380), (70, 1127266), (73, 1080940), (98, 805190), (140, 563633), (146, 540470), (196, 402595), (245, 322076), (292, 270235), (365, 216188), (490, 161038), (511, 154420), (730, 108094), (980, 80519), (1022, 77210), (1103, 71540), (1460, 54047), (2044, 38605), (2206, 35770), (2555, 30884), (3577, 22060), (4412, 17885), (5110, 15442), (5515, 14308), (7154, 11030), (7721, 10220)]