109223420

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1\times {\mathrm{389}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 233906400

約数和(自身を除く): 124682980

約数列:

[1, 2, 4, 5, 10, 20, 101, 139, 202, 278, 389, 404, 505, 556, 695, 778, 1010, 1390, 1556, 1945, 2020, 2780, 3890, 7780, 14039, 28078, 39289, 54071, 56156, 70195, 78578, 108142, 140390, 157156, 196445, 216284, 270355, 280780, 392890, 540710, 785780, 1081420, 5461171, 10922342, 21844684, 27305855, 54611710, 109223420]

約数ペア:

[(1, 109223420), (2, 54611710), (4, 27305855), (5, 21844684), (10, 10922342), (20, 5461171), (101, 1081420), (139, 785780), (202, 540710), (278, 392890), (389, 280780), (404, 270355), (505, 216284), (556, 196445), (695, 157156), (778, 140390), (1010, 108142), (1390, 78578), (1556, 70195), (1945, 56156), (2020, 54071), (2780, 39289), (3890, 28078), (7780, 14039)]