20807270

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:197

約数の個数: 64

約数和(自身を含む): 43110144

約数和(自身を除く): 22302874

約数列:

[1, 2, 5, 10, 11, 22, 43, 53, 55, 83, 86, 106, 110, 166, 215, 265, 415, 430, 473, 530, 583, 830, 913, 946, 1166, 1826, 2279, 2365, 2915, 3569, 4399, 4558, 4565, 4730, 5830, 7138, 8798, 9130, 11395, 17845, 21995, 22790, 25069, 35690, 39259, 43990, 48389, 50138, 78518, 96778, 125345, 189157, 196295, 241945, 250690, 378314, 392590, 483890, 945785, 1891570, 2080727, 4161454, 10403635, 20807270]

約数ペア:

[(1, 20807270), (2, 10403635), (5, 4161454), (10, 2080727), (11, 1891570), (22, 945785), (43, 483890), (53, 392590), (55, 378314), (83, 250690), (86, 241945), (106, 196295), (110, 189157), (166, 125345), (215, 96778), (265, 78518), (415, 50138), (430, 48389), (473, 43990), (530, 39259), (583, 35690), (830, 25069), (913, 22790), (946, 21995), (1166, 17845), (1826, 11395), (2279, 9130), (2365, 8798), (2915, 7138), (3569, 5830), (4399, 4730), (4558, 4565)]