520078540

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1\times {\mathrm{877}}^1$

素因数の和:1234

約数の個数: 48

約数和(自身を含む): 1106280000

約数和(自身を除く): 586201460

約数列:

[1, 2, 4, 5, 10, 20, 149, 199, 298, 398, 596, 745, 796, 877, 995, 1490, 1754, 1990, 2980, 3508, 3980, 4385, 8770, 17540, 29651, 59302, 118604, 130673, 148255, 174523, 261346, 296510, 349046, 522692, 593020, 653365, 698092, 872615, 1306730, 1745230, 2613460, 3490460, 26003927, 52007854, 104015708, 130019635, 260039270, 520078540]

約数ペア:

[(1, 520078540), (2, 260039270), (4, 130019635), (5, 104015708), (10, 52007854), (20, 26003927), (149, 3490460), (199, 2613460), (298, 1745230), (398, 1306730), (596, 872615), (745, 698092), (796, 653365), (877, 593020), (995, 522692), (1490, 349046), (1754, 296510), (1990, 261346), (2980, 174523), (3508, 148255), (3980, 130673), (4385, 118604), (8770, 59302), (17540, 29651)]