17984020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{14741}}^1$

素因数の和:14811

約数の個数: 24

約数和(自身を含む): 38388168

約数和(自身を除く): 20404148

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 14741, 29482, 58964, 73705, 147410, 294820, 899201, 1798402, 3596804, 4496005, 8992010, 17984020]

約数ペア:

[(1, 17984020), (2, 8992010), (4, 4496005), (5, 3596804), (10, 1798402), (20, 899201), (61, 294820), (122, 147410), (244, 73705), (305, 58964), (610, 29482), (1220, 14741)]