655123520

素因数分解:

$2^6\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{2029}}^1$

素因数の和:3055

約数の個数: 56

約数和(自身を含む): 1562328600

約数和(自身を除く): 907205080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 1009, 2018, 2029, 4036, 4058, 5045, 8072, 8116, 10090, 10145, 16144, 16232, 20180, 20290, 32288, 32464, 40360, 40580, 64576, 64928, 80720, 81160, 129856, 161440, 162320, 322880, 324640, 649280, 2047261, 4094522, 8189044, 10236305, 16378088, 20472610, 32756176, 40945220, 65512352, 81890440, 131024704, 163780880, 327561760, 655123520]

約数ペア:

[(1, 655123520), (2, 327561760), (4, 163780880), (5, 131024704), (8, 81890440), (10, 65512352), (16, 40945220), (20, 32756176), (32, 20472610), (40, 16378088), (64, 10236305), (80, 8189044), (160, 4094522), (320, 2047261), (1009, 649280), (2018, 324640), (2029, 322880), (4036, 162320), (4058, 161440), (5045, 129856), (8072, 81160), (8116, 80720), (10090, 64928), (10145, 64576), (16144, 40580), (16232, 40360), (20180, 32464), (20290, 32288)]