248564780

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1\times {\mathrm{349}}^1$

素因数の和:746

約数の個数: 48

約数和(自身を含む): 529200000

約数和(自身を除く): 280635220

約数列:

[1, 2, 4, 5, 10, 20, 149, 239, 298, 349, 478, 596, 698, 745, 956, 1195, 1396, 1490, 1745, 2390, 2980, 3490, 4780, 6980, 35611, 52001, 71222, 83411, 104002, 142444, 166822, 178055, 208004, 260005, 333644, 356110, 417055, 520010, 712220, 834110, 1040020, 1668220, 12428239, 24856478, 49712956, 62141195, 124282390, 248564780]

約数ペア:

[(1, 248564780), (2, 124282390), (4, 62141195), (5, 49712956), (10, 24856478), (20, 12428239), (149, 1668220), (239, 1040020), (298, 834110), (349, 712220), (478, 520010), (596, 417055), (698, 356110), (745, 333644), (956, 260005), (1195, 208004), (1396, 178055), (1490, 166822), (1745, 142444), (2390, 104002), (2980, 83411), (3490, 71222), (4780, 52001), (6980, 35611)]