163901960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1009}}^1$

素因数の和:1182

約数の個数: 64

約数和(自身を含む): 383961600

約数和(自身を除く): 220059640

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 131, 155, 248, 262, 310, 524, 620, 655, 1009, 1048, 1240, 1310, 2018, 2620, 4036, 4061, 5045, 5240, 8072, 8122, 10090, 16244, 20180, 20305, 31279, 32488, 40360, 40610, 62558, 81220, 125116, 132179, 156395, 162440, 250232, 264358, 312790, 528716, 625580, 660895, 1057432, 1251160, 1321790, 2643580, 4097549, 5287160, 8195098, 16390196, 20487745, 32780392, 40975490, 81950980, 163901960]

約数ペア:

[(1, 163901960), (2, 81950980), (4, 40975490), (5, 32780392), (8, 20487745), (10, 16390196), (20, 8195098), (31, 5287160), (40, 4097549), (62, 2643580), (124, 1321790), (131, 1251160), (155, 1057432), (248, 660895), (262, 625580), (310, 528716), (524, 312790), (620, 264358), (655, 250232), (1009, 162440), (1048, 156395), (1240, 132179), (1310, 125116), (2018, 81220), (2620, 62558), (4036, 40610), (4061, 40360), (5045, 32488), (5240, 31279), (8072, 20305), (8122, 20180), (10090, 16244)]