40805080

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{349}}^1$

素因数の和:476

約数の個数: 64

約数和(自身を含む): 95760000

約数和(自身を除く): 54954920

約数列:

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

約数ペア:

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