261322340

素因数分解:

$2^2\times 5^1\times {\mathrm{631}}^1\times {\mathrm{20707}}^1$

素因数の和:21347

約数の個数: 24

約数和(自身を含む): 549673152

約数和(自身を除く): 288350812

約数列:

[1, 2, 4, 5, 10, 20, 631, 1262, 2524, 3155, 6310, 12620, 20707, 41414, 82828, 103535, 207070, 414140, 13066117, 26132234, 52264468, 65330585, 130661170, 261322340]

約数ペア:

[(1, 261322340), (2, 130661170), (4, 65330585), (5, 52264468), (10, 26132234), (20, 13066117), (631, 414140), (1262, 207070), (2524, 103535), (3155, 82828), (6310, 41414), (12620, 20707)]