25522220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{503}}^1$

素因数の和:614

約数の個数: 48

約数和(自身を含む): 55883520

約数和(自身を除く): 30361300

約数列:

[1, 2, 4, 5, 10, 20, 43, 59, 86, 118, 172, 215, 236, 295, 430, 503, 590, 860, 1006, 1180, 2012, 2515, 2537, 5030, 5074, 10060, 10148, 12685, 21629, 25370, 29677, 43258, 50740, 59354, 86516, 108145, 118708, 148385, 216290, 296770, 432580, 593540, 1276111, 2552222, 5104444, 6380555, 12761110, 25522220]

約数ペア:

[(1, 25522220), (2, 12761110), (4, 6380555), (5, 5104444), (10, 2552222), (20, 1276111), (43, 593540), (59, 432580), (86, 296770), (118, 216290), (172, 148385), (215, 118708), (236, 108145), (295, 86516), (430, 59354), (503, 50740), (590, 43258), (860, 29677), (1006, 25370), (1180, 21629), (2012, 12685), (2515, 10148), (2537, 10060), (5030, 5074)]