18546620

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{353}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 40678848

約数和(自身を除く): 22132228

約数列:

[1, 2, 4, 5, 10, 20, 37, 71, 74, 142, 148, 185, 284, 353, 355, 370, 706, 710, 740, 1412, 1420, 1765, 2627, 3530, 5254, 7060, 10508, 13061, 13135, 25063, 26122, 26270, 50126, 52244, 52540, 65305, 100252, 125315, 130610, 250630, 261220, 501260, 927331, 1854662, 3709324, 4636655, 9273310, 18546620]

約数ペア:

[(1, 18546620), (2, 9273310), (4, 4636655), (5, 3709324), (10, 1854662), (20, 927331), (37, 501260), (71, 261220), (74, 250630), (142, 130610), (148, 125315), (185, 100252), (284, 65305), (353, 52540), (355, 52244), (370, 50126), (706, 26270), (710, 26122), (740, 25063), (1412, 13135), (1420, 13061), (1765, 10508), (2627, 7060), (3530, 5254)]