2012205420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{210923}}^1$

素因数の和:210991

約数の個数: 72

約数和(自身を含む): 6218883216

約数和(自身を除く): 4206677796

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 90, 106, 159, 180, 212, 265, 318, 477, 530, 636, 795, 954, 1060, 1590, 1908, 2385, 3180, 4770, 9540, 210923, 421846, 632769, 843692, 1054615, 1265538, 1898307, 2109230, 2531076, 3163845, 3796614, 4218460, 6327690, 7593228, 9491535, 11178919, 12655380, 18983070, 22357838, 33536757, 37966140, 44715676, 55894595, 67073514, 100610271, 111789190, 134147028, 167683785, 201220542, 223578380, 335367570, 402441084, 503051355, 670735140, 1006102710, 2012205420]

約数ペア:

[(1, 2012205420), (2, 1006102710), (3, 670735140), (4, 503051355), (5, 402441084), (6, 335367570), (9, 223578380), (10, 201220542), (12, 167683785), (15, 134147028), (18, 111789190), (20, 100610271), (30, 67073514), (36, 55894595), (45, 44715676), (53, 37966140), (60, 33536757), (90, 22357838), (106, 18983070), (159, 12655380), (180, 11178919), (212, 9491535), (265, 7593228), (318, 6327690), (477, 4218460), (530, 3796614), (636, 3163845), (795, 2531076), (954, 2109230), (1060, 1898307), (1590, 1265538), (1908, 1054615), (2385, 843692), (3180, 632769), (4770, 421846), (9540, 210923)]