119816920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{69661}}^1$

素因数の和:69715

約数の個数: 32

約数和(自身を含む): 275861520

約数和(自身を除く): 156044600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 69661, 139322, 278644, 348305, 557288, 696610, 1393220, 2786440, 2995423, 5990846, 11981692, 14977115, 23963384, 29954230, 59908460, 119816920]

約数ペア:

[(1, 119816920), (2, 59908460), (4, 29954230), (5, 23963384), (8, 14977115), (10, 11981692), (20, 5990846), (40, 2995423), (43, 2786440), (86, 1393220), (172, 696610), (215, 557288), (344, 348305), (430, 278644), (860, 139322), (1720, 69661)]