31218748

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{349}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 63504000

約数和(自身を除く): 32285252

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 107, 209, 214, 349, 418, 428, 698, 836, 1177, 1396, 2033, 2354, 3839, 4066, 4708, 6631, 7678, 8132, 13262, 15356, 22363, 26524, 37343, 44726, 72941, 74686, 89452, 145882, 149372, 291764, 410773, 709517, 821546, 1419034, 1643092, 2838068, 7804687, 15609374, 31218748]

約数ペア:

[(1, 31218748), (2, 15609374), (4, 7804687), (11, 2838068), (19, 1643092), (22, 1419034), (38, 821546), (44, 709517), (76, 410773), (107, 291764), (209, 149372), (214, 145882), (349, 89452), (418, 74686), (428, 72941), (698, 44726), (836, 37343), (1177, 26524), (1396, 22363), (2033, 15356), (2354, 13262), (3839, 8132), (4066, 7678), (4708, 6631)]