72391220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{281}}^1\times {\mathrm{1171}}^1$

素因数の和:1472

約数の個数: 48

約数和(自身を含む): 166574016

約数和(自身を除く): 94182796

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 281, 562, 1124, 1171, 1405, 2342, 2810, 3091, 4684, 5620, 5855, 6182, 11710, 12364, 12881, 15455, 23420, 25762, 30910, 51524, 61820, 64405, 128810, 257620, 329051, 658102, 1316204, 1645255, 3290510, 3619561, 6581020, 7239122, 14478244, 18097805, 36195610, 72391220]

約数ペア:

[(1, 72391220), (2, 36195610), (4, 18097805), (5, 14478244), (10, 7239122), (11, 6581020), (20, 3619561), (22, 3290510), (44, 1645255), (55, 1316204), (110, 658102), (220, 329051), (281, 257620), (562, 128810), (1124, 64405), (1171, 61820), (1405, 51524), (2342, 30910), (2810, 25762), (3091, 23420), (4684, 15455), (5620, 12881), (5855, 12364), (6182, 11710)]