81317940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{123209}}^1$

素因数の和:123232

約数の個数: 48

約数和(自身を含む): 248391360

約数和(自身を除く): 167073420

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 123209, 246418, 369627, 492836, 616045, 739254, 1232090, 1355299, 1478508, 1848135, 2464180, 2710598, 3696270, 4065897, 5421196, 6776495, 7392540, 8131794, 13552990, 16263588, 20329485, 27105980, 40658970, 81317940]

約数ペア:

[(1, 81317940), (2, 40658970), (3, 27105980), (4, 20329485), (5, 16263588), (6, 13552990), (10, 8131794), (11, 7392540), (12, 6776495), (15, 5421196), (20, 4065897), (22, 3696270), (30, 2710598), (33, 2464180), (44, 1848135), (55, 1478508), (60, 1355299), (66, 1232090), (110, 739254), (132, 616045), (165, 492836), (220, 369627), (330, 246418), (660, 123209)]