20978040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{2963}}^1$

素因数の和:3036

約数の個数: 64

約数和(自身を含む): 64022400

約数和(自身を除く): 43044360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 59, 60, 118, 120, 177, 236, 295, 354, 472, 590, 708, 885, 1180, 1416, 1770, 2360, 2963, 3540, 5926, 7080, 8889, 11852, 14815, 17778, 23704, 29630, 35556, 44445, 59260, 71112, 88890, 118520, 174817, 177780, 349634, 355560, 524451, 699268, 874085, 1048902, 1398536, 1748170, 2097804, 2622255, 3496340, 4195608, 5244510, 6992680, 10489020, 20978040]

約数ペア:

[(1, 20978040), (2, 10489020), (3, 6992680), (4, 5244510), (5, 4195608), (6, 3496340), (8, 2622255), (10, 2097804), (12, 1748170), (15, 1398536), (20, 1048902), (24, 874085), (30, 699268), (40, 524451), (59, 355560), (60, 349634), (118, 177780), (120, 174817), (177, 118520), (236, 88890), (295, 71112), (354, 59260), (472, 44445), (590, 35556), (708, 29630), (885, 23704), (1180, 17778), (1416, 14815), (1770, 11852), (2360, 8889), (2963, 7080), (3540, 5926)]