12400990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{613}}^1$

素因数の和:661

約数の個数: 48

約数和(自身を含む): 27143712

約数和(自身を除く): 14742722

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 85, 119, 170, 238, 289, 578, 595, 613, 1190, 1226, 1445, 2023, 2890, 3065, 4046, 4291, 6130, 8582, 10115, 10421, 20230, 20842, 21455, 42910, 52105, 72947, 104210, 145894, 177157, 354314, 364735, 729470, 885785, 1240099, 1771570, 2480198, 6200495, 12400990]

約数ペア:

[(1, 12400990), (2, 6200495), (5, 2480198), (7, 1771570), (10, 1240099), (14, 885785), (17, 729470), (34, 364735), (35, 354314), (70, 177157), (85, 145894), (119, 104210), (170, 72947), (238, 52105), (289, 42910), (578, 21455), (595, 20842), (613, 20230), (1190, 10421), (1226, 10115), (1445, 8582), (2023, 6130), (2890, 4291), (3065, 4046)]