72688180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{117239}}^1$

素因数の和:117279

約数の個数: 24

約数和(自身を含む): 157570560

約数和(自身を除く): 84882380

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 117239, 234478, 468956, 586195, 1172390, 2344780, 3634409, 7268818, 14537636, 18172045, 36344090, 72688180]

約数ペア:

[(1, 72688180), (2, 36344090), (4, 18172045), (5, 14537636), (10, 7268818), (20, 3634409), (31, 2344780), (62, 1172390), (124, 586195), (155, 468956), (310, 234478), (620, 117239)]