18347720

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{15817}}^1$

素因数の和:15857

約数の個数: 32

約数和(自身を含む): 42708600

約数和(自身を除く): 24360880

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 15817, 31634, 63268, 79085, 126536, 158170, 316340, 458693, 632680, 917386, 1834772, 2293465, 3669544, 4586930, 9173860, 18347720]

約数ペア:

[(1, 18347720), (2, 9173860), (4, 4586930), (5, 3669544), (8, 2293465), (10, 1834772), (20, 917386), (29, 632680), (40, 458693), (58, 316340), (116, 158170), (145, 126536), (232, 79085), (290, 63268), (580, 31634), (1160, 15817)]