42128260

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 90820800

約数和(自身を除く): 48692540

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 149, 211, 268, 298, 335, 422, 596, 670, 745, 844, 1055, 1340, 1490, 2110, 2980, 4220, 9983, 14137, 19966, 28274, 31439, 39932, 49915, 56548, 62878, 70685, 99830, 125756, 141370, 157195, 199660, 282740, 314390, 628780, 2106413, 4212826, 8425652, 10532065, 21064130, 42128260]

約数ペア:

[(1, 42128260), (2, 21064130), (4, 10532065), (5, 8425652), (10, 4212826), (20, 2106413), (67, 628780), (134, 314390), (149, 282740), (211, 199660), (268, 157195), (298, 141370), (335, 125756), (422, 99830), (596, 70685), (670, 62878), (745, 56548), (844, 49915), (1055, 39932), (1340, 31439), (1490, 28274), (2110, 19966), (2980, 14137), (4220, 9983)]