18993700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{557}}^1$

素因数の和:613

約数の個数: 72

約数和(自身を含む): 46497024

約数和(自身を除く): 27503324

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 31, 44, 50, 55, 62, 100, 110, 124, 155, 220, 275, 310, 341, 550, 557, 620, 682, 775, 1100, 1114, 1364, 1550, 1705, 2228, 2785, 3100, 3410, 5570, 6127, 6820, 8525, 11140, 12254, 13925, 17050, 17267, 24508, 27850, 30635, 34100, 34534, 55700, 61270, 69068, 86335, 122540, 153175, 172670, 189937, 306350, 345340, 379874, 431675, 612700, 759748, 863350, 949685, 1726700, 1899370, 3798740, 4748425, 9496850, 18993700]

約数ペア:

[(1, 18993700), (2, 9496850), (4, 4748425), (5, 3798740), (10, 1899370), (11, 1726700), (20, 949685), (22, 863350), (25, 759748), (31, 612700), (44, 431675), (50, 379874), (55, 345340), (62, 306350), (100, 189937), (110, 172670), (124, 153175), (155, 122540), (220, 86335), (275, 69068), (310, 61270), (341, 55700), (550, 34534), (557, 34100), (620, 30635), (682, 27850), (775, 24508), (1100, 17267), (1114, 17050), (1364, 13925), (1550, 12254), (1705, 11140), (2228, 8525), (2785, 6820), (3100, 6127), (3410, 5570)]