1220228975

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:297

約数の個数: 96

約数和(自身を含む): 1923305472

約数和(自身を除く): 703076497

約数列:

[1, 5, 7, 17, 25, 31, 35, 85, 101, 119, 131, 155, 175, 217, 425, 505, 527, 595, 655, 707, 775, 917, 1085, 1717, 2227, 2525, 2635, 2975, 3131, 3275, 3535, 3689, 4061, 4585, 5425, 8585, 11135, 12019, 13175, 13231, 15589, 15655, 17675, 18445, 20305, 21917, 22925, 28427, 42925, 53227, 55675, 60095, 66155, 69037, 77945, 78275, 92225, 92617, 101525, 109585, 142135, 224927, 266135, 300475, 330775, 345185, 372589, 389725, 410161, 463085, 483259, 547925, 710675, 1124635, 1330675, 1574489, 1725925, 1862945, 2050805, 2315425, 2416295, 2871127, 5623175, 6972737, 7872445, 9314725, 10254025, 12081475, 14355635, 34863685, 39362225, 48809159, 71778175, 174318425, 244045795, 1220228975]

約数ペア:

[(1, 1220228975), (5, 244045795), (7, 174318425), (17, 71778175), (25, 48809159), (31, 39362225), (35, 34863685), (85, 14355635), (101, 12081475), (119, 10254025), (131, 9314725), (155, 7872445), (175, 6972737), (217, 5623175), (425, 2871127), (505, 2416295), (527, 2315425), (595, 2050805), (655, 1862945), (707, 1725925), (775, 1574489), (917, 1330675), (1085, 1124635), (1717, 710675), (2227, 547925), (2525, 483259), (2635, 463085), (2975, 410161), (3131, 389725), (3275, 372589), (3535, 345185), (3689, 330775), (4061, 300475), (4585, 266135), (5425, 224927), (8585, 142135), (11135, 109585), (12019, 101525), (13175, 92617), (13231, 92225), (15589, 78275), (15655, 77945), (17675, 69037), (18445, 66155), (20305, 60095), (21917, 55675), (22925, 53227), (28427, 42925)]