487777180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{20341}}^1$

素因数の和:20470

約数の個数: 48

約数和(自身を含む): 1127760480

約数和(自身を除く): 639983300

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 109, 110, 218, 220, 436, 545, 1090, 1199, 2180, 2398, 4796, 5995, 11990, 20341, 23980, 40682, 81364, 101705, 203410, 223751, 406820, 447502, 895004, 1118755, 2217169, 2237510, 4434338, 4475020, 8868676, 11085845, 22171690, 24388859, 44343380, 48777718, 97555436, 121944295, 243888590, 487777180]

約数ペア:

[(1, 487777180), (2, 243888590), (4, 121944295), (5, 97555436), (10, 48777718), (11, 44343380), (20, 24388859), (22, 22171690), (44, 11085845), (55, 8868676), (109, 4475020), (110, 4434338), (218, 2237510), (220, 2217169), (436, 1118755), (545, 895004), (1090, 447502), (1199, 406820), (2180, 223751), (2398, 203410), (4796, 101705), (5995, 81364), (11990, 40682), (20341, 23980)]