51427220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1423}}^1$

素因数の和:1584

約数の個数: 48

約数和(自身を含む): 117223680

約数和(自身を除く): 65796460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 139, 260, 278, 556, 695, 1390, 1423, 1807, 2780, 2846, 3614, 5692, 7115, 7228, 9035, 14230, 18070, 18499, 28460, 36140, 36998, 73996, 92495, 184990, 197797, 369980, 395594, 791188, 988985, 1977970, 2571361, 3955940, 5142722, 10285444, 12856805, 25713610, 51427220]

約数ペア:

[(1, 51427220), (2, 25713610), (4, 12856805), (5, 10285444), (10, 5142722), (13, 3955940), (20, 2571361), (26, 1977970), (52, 988985), (65, 791188), (130, 395594), (139, 369980), (260, 197797), (278, 184990), (556, 92495), (695, 73996), (1390, 36998), (1423, 36140), (1807, 28460), (2780, 18499), (2846, 18070), (3614, 14230), (5692, 9035), (7115, 7228)]