81998610

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{281}}^1$

素因数の和:499

約数の個数: 64

約数和(自身を含む): 201740544

約数和(自身を除く): 119741934

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 71, 137, 142, 213, 274, 281, 355, 411, 426, 562, 685, 710, 822, 843, 1065, 1370, 1405, 1686, 2055, 2130, 2810, 4110, 4215, 8430, 9727, 19454, 19951, 29181, 38497, 39902, 48635, 58362, 59853, 76994, 97270, 99755, 115491, 119706, 145905, 192485, 199510, 230982, 291810, 299265, 384970, 577455, 598530, 1154910, 2733287, 5466574, 8199861, 13666435, 16399722, 27332870, 40999305, 81998610]

約数ペア:

[(1, 81998610), (2, 40999305), (3, 27332870), (5, 16399722), (6, 13666435), (10, 8199861), (15, 5466574), (30, 2733287), (71, 1154910), (137, 598530), (142, 577455), (213, 384970), (274, 299265), (281, 291810), (355, 230982), (411, 199510), (426, 192485), (562, 145905), (685, 119706), (710, 115491), (822, 99755), (843, 97270), (1065, 76994), (1370, 59853), (1405, 58362), (1686, 48635), (2055, 39902), (2130, 38497), (2810, 29181), (4110, 19951), (4215, 19454), (8430, 9727)]