19002355220

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{15575701}}^1$

素因数の和:15575771

約数の個数: 24

約数和(自身を含む): 40559128008

約数和(自身を除く): 21556772788

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 15575701, 31151402, 62302804, 77878505, 155757010, 311514020, 950117761, 1900235522, 3800471044, 4750588805, 9501177610, 19002355220]

約数ペア:

[(1, 19002355220), (2, 9501177610), (4, 4750588805), (5, 3800471044), (10, 1900235522), (20, 950117761), (61, 311514020), (122, 155757010), (244, 77878505), (305, 62302804), (610, 31151402), (1220, 15575701)]