20296360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{419}}^1$

素因数の和:610

約数の個数: 64

約数和(自身を含む): 52617600

約数和(自身を除く): 32321240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 173, 280, 346, 419, 692, 838, 865, 1211, 1384, 1676, 1730, 2095, 2422, 2933, 3352, 3460, 4190, 4844, 5866, 6055, 6920, 8380, 9688, 11732, 12110, 14665, 16760, 23464, 24220, 29330, 48440, 58660, 72487, 117320, 144974, 289948, 362435, 507409, 579896, 724870, 1014818, 1449740, 2029636, 2537045, 2899480, 4059272, 5074090, 10148180, 20296360]

約数ペア:

[(1, 20296360), (2, 10148180), (4, 5074090), (5, 4059272), (7, 2899480), (8, 2537045), (10, 2029636), (14, 1449740), (20, 1014818), (28, 724870), (35, 579896), (40, 507409), (56, 362435), (70, 289948), (140, 144974), (173, 117320), (280, 72487), (346, 58660), (419, 48440), (692, 29330), (838, 24220), (865, 23464), (1211, 16760), (1384, 14665), (1676, 12110), (1730, 11732), (2095, 9688), (2422, 8380), (2933, 6920), (3352, 6055), (3460, 5866), (4190, 4844)]