1387802020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{6308191}}^1$

素因数の和:6308211

約数の個数: 24

約数和(自身を含む): 3179328768

約数和(自身を除く): 1791526748

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 6308191, 12616382, 25232764, 31540955, 63081910, 69390101, 126163820, 138780202, 277560404, 346950505, 693901010, 1387802020]

約数ペア:

[(1, 1387802020), (2, 693901010), (4, 346950505), (5, 277560404), (10, 138780202), (11, 126163820), (20, 69390101), (22, 63081910), (44, 31540955), (55, 25232764), (110, 12616382), (220, 6308191)]