66214840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{281}}^1$

素因数の和:472

約数の個数: 64

約数和(自身を含む): 154107360

約数和(自身を除く): 87892520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 137, 172, 215, 274, 281, 344, 430, 548, 562, 685, 860, 1096, 1124, 1370, 1405, 1720, 2248, 2740, 2810, 5480, 5620, 5891, 11240, 11782, 12083, 23564, 24166, 29455, 38497, 47128, 48332, 58910, 60415, 76994, 96664, 117820, 120830, 153988, 192485, 235640, 241660, 307976, 384970, 483320, 769940, 1539880, 1655371, 3310742, 6621484, 8276855, 13242968, 16553710, 33107420, 66214840]

約数ペア:

[(1, 66214840), (2, 33107420), (4, 16553710), (5, 13242968), (8, 8276855), (10, 6621484), (20, 3310742), (40, 1655371), (43, 1539880), (86, 769940), (137, 483320), (172, 384970), (215, 307976), (274, 241660), (281, 235640), (344, 192485), (430, 153988), (548, 120830), (562, 117820), (685, 96664), (860, 76994), (1096, 60415), (1124, 58910), (1370, 48332), (1405, 47128), (1720, 38497), (2248, 29455), (2740, 24166), (2810, 23564), (5480, 12083), (5620, 11782), (5891, 11240)]