15516820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{281}}^1$

素因数の和:552

約数の個数: 48

約数和(自身を含む): 35816256

約数和(自身を除く): 20299436

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 251, 281, 502, 562, 1004, 1124, 1255, 1405, 2510, 2761, 2810, 3091, 5020, 5522, 5620, 6182, 11044, 12364, 13805, 15455, 27610, 30910, 55220, 61820, 70531, 141062, 282124, 352655, 705310, 775841, 1410620, 1551682, 3103364, 3879205, 7758410, 15516820]

約数ペア:

[(1, 15516820), (2, 7758410), (4, 3879205), (5, 3103364), (10, 1551682), (11, 1410620), (20, 775841), (22, 705310), (44, 352655), (55, 282124), (110, 141062), (220, 70531), (251, 61820), (281, 55220), (502, 30910), (562, 27610), (1004, 15455), (1124, 13805), (1255, 12364), (1405, 11044), (2510, 6182), (2761, 5620), (2810, 5522), (3091, 5020)]