820624140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{651289}}^1$

素因数の和:651311

約数の個数: 72

約数和(自身を含む): 2844834720

約数和(自身を除く): 2024210580

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 651289, 1302578, 1953867, 2605156, 3256445, 3907734, 4559023, 5861601, 6512890, 7815468, 9118046, 9769335, 11723202, 13025780, 13677069, 18236092, 19538670, 22795115, 23446404, 27354138, 29308005, 39077340, 41031207, 45590230, 54708276, 58616010, 68385345, 82062414, 91180460, 117232020, 136770690, 164124828, 205156035, 273541380, 410312070, 820624140]

約数ペア:

[(1, 820624140), (2, 410312070), (3, 273541380), (4, 205156035), (5, 164124828), (6, 136770690), (7, 117232020), (9, 91180460), (10, 82062414), (12, 68385345), (14, 58616010), (15, 54708276), (18, 45590230), (20, 41031207), (21, 39077340), (28, 29308005), (30, 27354138), (35, 23446404), (36, 22795115), (42, 19538670), (45, 18236092), (60, 13677069), (63, 13025780), (70, 11723202), (84, 9769335), (90, 9118046), (105, 7815468), (126, 6512890), (140, 5861601), (180, 4559023), (210, 3907734), (252, 3256445), (315, 2605156), (420, 1953867), (630, 1302578), (1260, 651289)]