20630350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1867}}^1$

素因数の和:1909

約数の個数: 48

約数和(自身を含む): 43778448

約数和(自身を除く): 23148098

約数列:

[1, 2, 5, 10, 13, 17, 25, 26, 34, 50, 65, 85, 130, 170, 221, 325, 425, 442, 650, 850, 1105, 1867, 2210, 3734, 5525, 9335, 11050, 18670, 24271, 31739, 46675, 48542, 63478, 93350, 121355, 158695, 242710, 317390, 412607, 606775, 793475, 825214, 1213550, 1586950, 2063035, 4126070, 10315175, 20630350]

約数ペア:

[(1, 20630350), (2, 10315175), (5, 4126070), (10, 2063035), (13, 1586950), (17, 1213550), (25, 825214), (26, 793475), (34, 606775), (50, 412607), (65, 317390), (85, 242710), (130, 158695), (170, 121355), (221, 93350), (325, 63478), (425, 48542), (442, 46675), (650, 31739), (850, 24271), (1105, 18670), (1867, 11050), (2210, 9335), (3734, 5525)]