127988680

素因数分解:

$2^3\times 5^1\times {\mathrm{709}}^1\times {\mathrm{4513}}^1$

素因数の和:5233

約数の個数: 32

約数和(自身を含む): 288444600

約数和(自身を除く): 160455920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 709, 1418, 2836, 3545, 4513, 5672, 7090, 9026, 14180, 18052, 22565, 28360, 36104, 45130, 90260, 180520, 3199717, 6399434, 12798868, 15998585, 25597736, 31997170, 63994340, 127988680]

約数ペア:

[(1, 127988680), (2, 63994340), (4, 31997170), (5, 25597736), (8, 15998585), (10, 12798868), (20, 6399434), (40, 3199717), (709, 180520), (1418, 90260), (2836, 45130), (3545, 36104), (4513, 28360), (5672, 22565), (7090, 18052), (9026, 14180)]