28674310

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{421}}^1$

素因数の和:581

約数の個数: 48

約数和(自身を含む): 60616080

約数和(自身を除く): 31941770

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 139, 245, 278, 421, 490, 695, 842, 973, 1390, 1946, 2105, 2947, 4210, 4865, 5894, 6811, 9730, 13622, 14735, 20629, 29470, 34055, 41258, 58519, 68110, 103145, 117038, 206290, 292595, 409633, 585190, 819266, 2048165, 2867431, 4096330, 5734862, 14337155, 28674310]

約数ペア:

[(1, 28674310), (2, 14337155), (5, 5734862), (7, 4096330), (10, 2867431), (14, 2048165), (35, 819266), (49, 585190), (70, 409633), (98, 292595), (139, 206290), (245, 117038), (278, 103145), (421, 68110), (490, 58519), (695, 41258), (842, 34055), (973, 29470), (1390, 20629), (1946, 14735), (2105, 13622), (2947, 9730), (4210, 6811), (4865, 5894)]