17754940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4091}}^1$

素因数の和:4138

約数の個数: 48

約数和(自身を含む): 43997184

約数和(自身を除く): 26242244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4091, 4340, 8182, 16364, 20455, 28637, 40910, 57274, 81820, 114548, 126821, 143185, 253642, 286370, 507284, 572740, 634105, 887747, 1268210, 1775494, 2536420, 3550988, 4438735, 8877470, 17754940]

約数ペア:

[(1, 17754940), (2, 8877470), (4, 4438735), (5, 3550988), (7, 2536420), (10, 1775494), (14, 1268210), (20, 887747), (28, 634105), (31, 572740), (35, 507284), (62, 286370), (70, 253642), (124, 143185), (140, 126821), (155, 114548), (217, 81820), (310, 57274), (434, 40910), (620, 28637), (868, 20455), (1085, 16364), (2170, 8182), (4091, 4340)]