31578680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3889}}^1$

素因数の和:3936

約数の個数: 64

約数和(自身を含む): 84024000

約数和(自身を除く): 52445320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 280, 290, 406, 580, 812, 1015, 1160, 1624, 2030, 3889, 4060, 7778, 8120, 15556, 19445, 27223, 31112, 38890, 54446, 77780, 108892, 112781, 136115, 155560, 217784, 225562, 272230, 451124, 544460, 563905, 789467, 902248, 1088920, 1127810, 1578934, 2255620, 3157868, 3947335, 4511240, 6315736, 7894670, 15789340, 31578680]

約数ペア:

[(1, 31578680), (2, 15789340), (4, 7894670), (5, 6315736), (7, 4511240), (8, 3947335), (10, 3157868), (14, 2255620), (20, 1578934), (28, 1127810), (29, 1088920), (35, 902248), (40, 789467), (56, 563905), (58, 544460), (70, 451124), (116, 272230), (140, 225562), (145, 217784), (203, 155560), (232, 136115), (280, 112781), (290, 108892), (406, 77780), (580, 54446), (812, 38890), (1015, 31112), (1160, 27223), (1624, 19445), (2030, 15556), (3889, 8120), (4060, 7778)]