18499870

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{719}}^1$

素因数の和:840

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 16336610

約数列:

[1, 2, 5, 10, 31, 62, 83, 155, 166, 310, 415, 719, 830, 1438, 2573, 3595, 5146, 7190, 12865, 22289, 25730, 44578, 59677, 111445, 119354, 222890, 298385, 596770, 1849987, 3699974, 9249935, 18499870]

約数ペア:

[(1, 18499870), (2, 9249935), (5, 3699974), (10, 1849987), (31, 596770), (62, 298385), (83, 222890), (155, 119354), (166, 111445), (310, 59677), (415, 44578), (719, 25730), (830, 22289), (1438, 12865), (2573, 7190), (3595, 5146)]