220722020

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{379}}^1\times {\mathrm{787}}^1$

素因数の和:1212

約数の個数: 48

約数和(自身を含む): 477906240

約数和(自身を除く): 257184220

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 379, 740, 758, 787, 1516, 1574, 1895, 3148, 3790, 3935, 7580, 7870, 14023, 15740, 28046, 29119, 56092, 58238, 70115, 116476, 140230, 145595, 280460, 291190, 298273, 582380, 596546, 1193092, 1491365, 2982730, 5965460, 11036101, 22072202, 44144404, 55180505, 110361010, 220722020]

約数ペア:

[(1, 220722020), (2, 110361010), (4, 55180505), (5, 44144404), (10, 22072202), (20, 11036101), (37, 5965460), (74, 2982730), (148, 1491365), (185, 1193092), (370, 596546), (379, 582380), (740, 298273), (758, 291190), (787, 280460), (1516, 145595), (1574, 140230), (1895, 116476), (3148, 70115), (3790, 58238), (3935, 56092), (7580, 29119), (7870, 28046), (14023, 15740)]