20215522840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{152363}}^1$

素因数の和:152512

約数の個数: 64

約数和(自身を含む): 47391298560

約数和(自身を除く): 27175775720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 107, 124, 155, 214, 248, 310, 428, 535, 620, 856, 1070, 1240, 2140, 3317, 4280, 6634, 13268, 16585, 26536, 33170, 66340, 132680, 152363, 304726, 609452, 761815, 1218904, 1523630, 3047260, 4723253, 6094520, 9446506, 16302841, 18893012, 23616265, 32605682, 37786024, 47232530, 65211364, 81514205, 94465060, 130422728, 163028410, 188930120, 326056820, 505388071, 652113640, 1010776142, 2021552284, 2526940355, 4043104568, 5053880710, 10107761420, 20215522840]

約数ペア:

[(1, 20215522840), (2, 10107761420), (4, 5053880710), (5, 4043104568), (8, 2526940355), (10, 2021552284), (20, 1010776142), (31, 652113640), (40, 505388071), (62, 326056820), (107, 188930120), (124, 163028410), (155, 130422728), (214, 94465060), (248, 81514205), (310, 65211364), (428, 47232530), (535, 37786024), (620, 32605682), (856, 23616265), (1070, 18893012), (1240, 16302841), (2140, 9446506), (3317, 6094520), (4280, 4723253), (6634, 3047260), (13268, 1523630), (16585, 1218904), (26536, 761815), (33170, 609452), (66340, 304726), (132680, 152363)]