81610160

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{349}}^1$

素因数の和:478

約数の個数: 80

約数和(自身を含む): 197904000

約数和(自身を除く): 116293840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 79, 80, 148, 158, 185, 296, 316, 349, 370, 395, 592, 632, 698, 740, 790, 1264, 1396, 1480, 1580, 1745, 2792, 2923, 2960, 3160, 3490, 5584, 5846, 6320, 6980, 11692, 12913, 13960, 14615, 23384, 25826, 27571, 27920, 29230, 46768, 51652, 55142, 58460, 64565, 103304, 110284, 116920, 129130, 137855, 206608, 220568, 233840, 258260, 275710, 441136, 516520, 551420, 1020127, 1033040, 1102840, 2040254, 2205680, 4080508, 5100635, 8161016, 10201270, 16322032, 20402540, 40805080, 81610160]

約数ペア:

[(1, 81610160), (2, 40805080), (4, 20402540), (5, 16322032), (8, 10201270), (10, 8161016), (16, 5100635), (20, 4080508), (37, 2205680), (40, 2040254), (74, 1102840), (79, 1033040), (80, 1020127), (148, 551420), (158, 516520), (185, 441136), (296, 275710), (316, 258260), (349, 233840), (370, 220568), (395, 206608), (592, 137855), (632, 129130), (698, 116920), (740, 110284), (790, 103304), (1264, 64565), (1396, 58460), (1480, 55142), (1580, 51652), (1745, 46768), (2792, 29230), (2923, 27920), (2960, 27571), (3160, 25826), (3490, 23384), (5584, 14615), (5846, 13960), (6320, 12913), (6980, 11692)]