258222560

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{659}}^1$

素因数の和:784

約数の個数: 96

約数和(自身を含む): 638668800

約数和(自身を除く): 380446240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 79, 80, 124, 155, 158, 160, 248, 310, 316, 395, 496, 620, 632, 659, 790, 992, 1240, 1264, 1318, 1580, 2449, 2480, 2528, 2636, 3160, 3295, 4898, 4960, 5272, 6320, 6590, 9796, 10544, 12245, 12640, 13180, 19592, 20429, 21088, 24490, 26360, 39184, 40858, 48980, 52061, 52720, 78368, 81716, 97960, 102145, 104122, 105440, 163432, 195920, 204290, 208244, 260305, 326864, 391840, 408580, 416488, 520610, 653728, 817160, 832976, 1041220, 1613891, 1634320, 1665952, 2082440, 3227782, 3268640, 4164880, 6455564, 8069455, 8329760, 12911128, 16138910, 25822256, 32277820, 51644512, 64555640, 129111280, 258222560]

約数ペア:

[(1, 258222560), (2, 129111280), (4, 64555640), (5, 51644512), (8, 32277820), (10, 25822256), (16, 16138910), (20, 12911128), (31, 8329760), (32, 8069455), (40, 6455564), (62, 4164880), (79, 3268640), (80, 3227782), (124, 2082440), (155, 1665952), (158, 1634320), (160, 1613891), (248, 1041220), (310, 832976), (316, 817160), (395, 653728), (496, 520610), (620, 416488), (632, 408580), (659, 391840), (790, 326864), (992, 260305), (1240, 208244), (1264, 204290), (1318, 195920), (1580, 163432), (2449, 105440), (2480, 104122), (2528, 102145), (2636, 97960), (3160, 81716), (3295, 78368), (4898, 52720), (4960, 52061), (5272, 48980), (6320, 40858), (6590, 39184), (9796, 26360), (10544, 24490), (12245, 21088), (12640, 20429), (13180, 19592)]