78581025

素因数分解:

$3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{4919}}^1$

素因数の和:5006

約数の個数: 36

約数和(自身を含む): 142758720

約数和(自身を除く): 64177695

約数列:

[1, 3, 5, 9, 15, 25, 45, 71, 75, 213, 225, 355, 639, 1065, 1775, 3195, 4919, 5325, 14757, 15975, 24595, 44271, 73785, 122975, 221355, 349249, 368925, 1047747, 1106775, 1746245, 3143241, 5238735, 8731225, 15716205, 26193675, 78581025]

約数ペア:

[(1, 78581025), (3, 26193675), (5, 15716205), (9, 8731225), (15, 5238735), (25, 3143241), (45, 1746245), (71, 1106775), (75, 1047747), (213, 368925), (225, 349249), (355, 221355), (639, 122975), (1065, 73785), (1775, 44271), (3195, 24595), (4919, 15975), (5325, 14757)]