201381620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{457}}^1\times {\mathrm{2003}}^1$

素因数の和:2480

約数の個数: 48

約数和(自身を含む): 462587328

約数和(自身を除く): 261205708

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 457, 914, 1828, 2003, 2285, 4006, 4570, 5027, 8012, 9140, 10015, 10054, 20030, 20108, 22033, 25135, 40060, 44066, 50270, 88132, 100540, 110165, 220330, 440660, 915371, 1830742, 3661484, 4576855, 9153710, 10069081, 18307420, 20138162, 40276324, 50345405, 100690810, 201381620]

約数ペア:

[(1, 201381620), (2, 100690810), (4, 50345405), (5, 40276324), (10, 20138162), (11, 18307420), (20, 10069081), (22, 9153710), (44, 4576855), (55, 3661484), (110, 1830742), (220, 915371), (457, 440660), (914, 220330), (1828, 110165), (2003, 100540), (2285, 88132), (4006, 50270), (4570, 44066), (5027, 40060), (8012, 25135), (9140, 22033), (10015, 20108), (10054, 20030)]