260583830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{64661}}^1$

素因数の和:64712

約数の個数: 32

約数和(自身を含む): 521434368

約数和(自身を除く): 260850538

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 64661, 129322, 323305, 646610, 840593, 1681186, 2004491, 4008982, 4202965, 8405930, 10022455, 20044910, 26058383, 52116766, 130291915, 260583830]

約数ペア:

[(1, 260583830), (2, 130291915), (5, 52116766), (10, 26058383), (13, 20044910), (26, 10022455), (31, 8405930), (62, 4202965), (65, 4008982), (130, 2004491), (155, 1681186), (310, 840593), (403, 646610), (806, 323305), (2015, 129322), (4030, 64661)]