71642920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{881}}^1$

素因数の和:1018

約数の個数: 64

約数和(自身を含む): 171460800

約数和(自身を除く): 99817880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 107, 152, 190, 214, 380, 428, 535, 760, 856, 881, 1070, 1762, 2033, 2140, 3524, 4066, 4280, 4405, 7048, 8132, 8810, 10165, 16264, 16739, 17620, 20330, 33478, 35240, 40660, 66956, 81320, 83695, 94267, 133912, 167390, 188534, 334780, 377068, 471335, 669560, 754136, 942670, 1791073, 1885340, 3582146, 3770680, 7164292, 8955365, 14328584, 17910730, 35821460, 71642920]

約数ペア:

[(1, 71642920), (2, 35821460), (4, 17910730), (5, 14328584), (8, 8955365), (10, 7164292), (19, 3770680), (20, 3582146), (38, 1885340), (40, 1791073), (76, 942670), (95, 754136), (107, 669560), (152, 471335), (190, 377068), (214, 334780), (380, 188534), (428, 167390), (535, 133912), (760, 94267), (856, 83695), (881, 81320), (1070, 66956), (1762, 40660), (2033, 35240), (2140, 33478), (3524, 20330), (4066, 17620), (4280, 16739), (4405, 16264), (7048, 10165), (8132, 8810)]