680211320

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{414763}}^1$

素因数の和:414815

約数の個数: 32

約数和(自身を含む): 1567807920

約数和(自身を除く): 887596600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 414763, 829526, 1659052, 2073815, 3318104, 4147630, 8295260, 16590520, 17005283, 34010566, 68021132, 85026415, 136042264, 170052830, 340105660, 680211320]

約数ペア:

[(1, 680211320), (2, 340105660), (4, 170052830), (5, 136042264), (8, 85026415), (10, 68021132), (20, 34010566), (40, 17005283), (41, 16590520), (82, 8295260), (164, 4147630), (205, 3318104), (328, 2073815), (410, 1659052), (820, 829526), (1640, 414763)]