18412960

素因数分解:

$2^5\times 5^1\times {\mathrm{157}}^1\times {\mathrm{733}}^1$

素因数の和:905

約数の個数: 48

約数和(自身を含む): 43837416

約数和(自身を除く): 25424456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 157, 160, 314, 628, 733, 785, 1256, 1466, 1570, 2512, 2932, 3140, 3665, 5024, 5864, 6280, 7330, 11728, 12560, 14660, 23456, 25120, 29320, 58640, 115081, 117280, 230162, 460324, 575405, 920648, 1150810, 1841296, 2301620, 3682592, 4603240, 9206480, 18412960]

約数ペア:

[(1, 18412960), (2, 9206480), (4, 4603240), (5, 3682592), (8, 2301620), (10, 1841296), (16, 1150810), (20, 920648), (32, 575405), (40, 460324), (80, 230162), (157, 117280), (160, 115081), (314, 58640), (628, 29320), (733, 25120), (785, 23456), (1256, 14660), (1466, 12560), (1570, 11728), (2512, 7330), (2932, 6280), (3140, 5864), (3665, 5024)]