261199280

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{1117}}^1$

素因数の和:1246

約数の個数: 80

約数和(自身を含む): 632161920

約数和(自身を除く): 370962640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 79, 80, 148, 158, 185, 296, 316, 370, 395, 592, 632, 740, 790, 1117, 1264, 1480, 1580, 2234, 2923, 2960, 3160, 4468, 5585, 5846, 6320, 8936, 11170, 11692, 14615, 17872, 22340, 23384, 29230, 41329, 44680, 46768, 58460, 82658, 88243, 89360, 116920, 165316, 176486, 206645, 233840, 330632, 352972, 413290, 441215, 661264, 705944, 826580, 882430, 1411888, 1653160, 1764860, 3264991, 3306320, 3529720, 6529982, 7059440, 13059964, 16324955, 26119928, 32649910, 52239856, 65299820, 130599640, 261199280]

約数ペア:

[(1, 261199280), (2, 130599640), (4, 65299820), (5, 52239856), (8, 32649910), (10, 26119928), (16, 16324955), (20, 13059964), (37, 7059440), (40, 6529982), (74, 3529720), (79, 3306320), (80, 3264991), (148, 1764860), (158, 1653160), (185, 1411888), (296, 882430), (316, 826580), (370, 705944), (395, 661264), (592, 441215), (632, 413290), (740, 352972), (790, 330632), (1117, 233840), (1264, 206645), (1480, 176486), (1580, 165316), (2234, 116920), (2923, 89360), (2960, 88243), (3160, 82658), (4468, 58460), (5585, 46768), (5846, 44680), (6320, 41329), (8936, 29230), (11170, 23384), (11692, 22340), (14615, 17872)]