71809640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{8273}}^1$

素因数の和:8322

約数の個数: 64

約数和(自身を含む): 190632960

約数和(自身を除く): 118823320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8273, 8680, 16546, 33092, 41365, 57911, 66184, 82730, 115822, 165460, 231644, 256463, 289555, 330920, 463288, 512926, 579110, 1025852, 1158220, 1282315, 1795241, 2051704, 2316440, 2564630, 3590482, 5129260, 7180964, 8976205, 10258520, 14361928, 17952410, 35904820, 71809640]

約数ペア:

[(1, 71809640), (2, 35904820), (4, 17952410), (5, 14361928), (7, 10258520), (8, 8976205), (10, 7180964), (14, 5129260), (20, 3590482), (28, 2564630), (31, 2316440), (35, 2051704), (40, 1795241), (56, 1282315), (62, 1158220), (70, 1025852), (124, 579110), (140, 512926), (155, 463288), (217, 330920), (248, 289555), (280, 256463), (310, 231644), (434, 165460), (620, 115822), (868, 82730), (1085, 66184), (1240, 57911), (1736, 41365), (2170, 33092), (4340, 16546), (8273, 8680)]