211581245

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{1259}}^1$

素因数の和:1373

約数の個数: 32

約数和(自身を含む): 281232000

約数和(自身を除く): 69650755

約数列:

[1, 5, 19, 29, 61, 95, 145, 305, 551, 1159, 1259, 1769, 2755, 5795, 6295, 8845, 23921, 33611, 36511, 76799, 119605, 168055, 182555, 383995, 693709, 1459181, 2227171, 3468545, 7295905, 11135855, 42316249, 211581245]

約数ペア:

[(1, 211581245), (5, 42316249), (19, 11135855), (29, 7295905), (61, 3468545), (95, 2227171), (145, 1459181), (305, 693709), (551, 383995), (1159, 182555), (1259, 168055), (1769, 119605), (2755, 76799), (5795, 36511), (6295, 33611), (8845, 23921)]