256585420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8293}}^1$

素因数の和:8339

約数の個数: 96

約数和(自身を含む): 702269568

約数和(自身を除く): 445684148

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 17, 20, 26, 28, 34, 35, 52, 65, 68, 70, 85, 91, 119, 130, 140, 170, 182, 221, 238, 260, 340, 364, 442, 455, 476, 595, 884, 910, 1105, 1190, 1547, 1820, 2210, 2380, 3094, 4420, 6188, 7735, 8293, 15470, 16586, 30940, 33172, 41465, 58051, 82930, 107809, 116102, 140981, 165860, 215618, 232204, 281962, 290255, 431236, 539045, 563924, 580510, 704905, 754663, 986867, 1078090, 1161020, 1409810, 1509326, 1832753, 1973734, 2156180, 2819620, 3018652, 3665506, 3773315, 3947468, 4934335, 7331012, 7546630, 9163765, 9868670, 12829271, 15093260, 18327530, 19737340, 25658542, 36655060, 51317084, 64146355, 128292710, 256585420]

約数ペア:

[(1, 256585420), (2, 128292710), (4, 64146355), (5, 51317084), (7, 36655060), (10, 25658542), (13, 19737340), (14, 18327530), (17, 15093260), (20, 12829271), (26, 9868670), (28, 9163765), (34, 7546630), (35, 7331012), (52, 4934335), (65, 3947468), (68, 3773315), (70, 3665506), (85, 3018652), (91, 2819620), (119, 2156180), (130, 1973734), (140, 1832753), (170, 1509326), (182, 1409810), (221, 1161020), (238, 1078090), (260, 986867), (340, 754663), (364, 704905), (442, 580510), (455, 563924), (476, 539045), (595, 431236), (884, 290255), (910, 281962), (1105, 232204), (1190, 215618), (1547, 165860), (1820, 140981), (2210, 116102), (2380, 107809), (3094, 82930), (4420, 58051), (6188, 41465), (7735, 33172), (8293, 30940), (15470, 16586)]