18216220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2671}}^1$

素因数の和:2722

約数の個数: 48

約数和(自身を含む): 43094016

約数和(自身を除く): 24877796

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 2671, 3410, 5342, 6820, 10684, 13355, 26710, 29381, 53420, 58762, 82801, 117524, 146905, 165602, 293810, 331204, 414005, 587620, 828010, 910811, 1656020, 1821622, 3643244, 4554055, 9108110, 18216220]

約数ペア:

[(1, 18216220), (2, 9108110), (4, 4554055), (5, 3643244), (10, 1821622), (11, 1656020), (20, 910811), (22, 828010), (31, 587620), (44, 414005), (55, 331204), (62, 293810), (110, 165602), (124, 146905), (155, 117524), (220, 82801), (310, 58762), (341, 53420), (620, 29381), (682, 26710), (1364, 13355), (1705, 10684), (2671, 6820), (3410, 5342)]