203900540

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{1291}}^1$

素因数の和:1502

約数の個数: 48

約数和(自身を含む): 439538400

約数和(自身を除く): 235637860

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 149, 212, 265, 298, 530, 596, 745, 1060, 1291, 1490, 2582, 2980, 5164, 6455, 7897, 12910, 15794, 25820, 31588, 39485, 68423, 78970, 136846, 157940, 192359, 273692, 342115, 384718, 684230, 769436, 961795, 1368460, 1923590, 3847180, 10195027, 20390054, 40780108, 50975135, 101950270, 203900540]

約数ペア:

[(1, 203900540), (2, 101950270), (4, 50975135), (5, 40780108), (10, 20390054), (20, 10195027), (53, 3847180), (106, 1923590), (149, 1368460), (212, 961795), (265, 769436), (298, 684230), (530, 384718), (596, 342115), (745, 273692), (1060, 192359), (1291, 157940), (1490, 136846), (2582, 78970), (2980, 68423), (5164, 39485), (6455, 31588), (7897, 25820), (12910, 15794)]