680621320

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{415013}}^1$

素因数の和:415065

約数の個数: 32

約数和(自身を含む): 1568752920

約数和(自身を除く): 888131600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 415013, 830026, 1660052, 2075065, 3320104, 4150130, 8300260, 16600520, 17015533, 34031066, 68062132, 85077665, 136124264, 170155330, 340310660, 680621320]

約数ペア:

[(1, 680621320), (2, 340310660), (4, 170155330), (5, 136124264), (8, 85077665), (10, 68062132), (20, 34031066), (40, 17015533), (41, 16600520), (82, 8300260), (164, 4150130), (205, 3320104), (328, 2075065), (410, 1660052), (820, 830026), (1640, 415013)]