19676440

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{10039}}^1$

素因数の和:10064

約数の個数: 48

約数和(自身を含む): 51505200

約数和(自身を除く): 31828760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 10039, 20078, 40156, 50195, 70273, 80312, 100390, 140546, 200780, 281092, 351365, 401560, 491911, 562184, 702730, 983822, 1405460, 1967644, 2459555, 2810920, 3935288, 4919110, 9838220, 19676440]

約数ペア:

[(1, 19676440), (2, 9838220), (4, 4919110), (5, 3935288), (7, 2810920), (8, 2459555), (10, 1967644), (14, 1405460), (20, 983822), (28, 702730), (35, 562184), (40, 491911), (49, 401560), (56, 351365), (70, 281092), (98, 200780), (140, 140546), (196, 100390), (245, 80312), (280, 70273), (392, 50195), (490, 40156), (980, 20078), (1960, 10039)]