25217360

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{919}}^1$

素因数の和:953

約数の個数: 80

約数和(自身を含む): 68448000

約数和(自身を除く): 43230640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 919, 980, 1372, 1715, 1838, 1960, 2744, 3430, 3676, 3920, 4595, 5488, 6433, 6860, 7352, 9190, 12866, 13720, 14704, 18380, 25732, 27440, 32165, 36760, 45031, 51464, 64330, 73520, 90062, 102928, 128660, 180124, 225155, 257320, 315217, 360248, 450310, 514640, 630434, 720496, 900620, 1260868, 1576085, 1801240, 2521736, 3152170, 3602480, 5043472, 6304340, 12608680, 25217360]

約数ペア:

[(1, 25217360), (2, 12608680), (4, 6304340), (5, 5043472), (7, 3602480), (8, 3152170), (10, 2521736), (14, 1801240), (16, 1576085), (20, 1260868), (28, 900620), (35, 720496), (40, 630434), (49, 514640), (56, 450310), (70, 360248), (80, 315217), (98, 257320), (112, 225155), (140, 180124), (196, 128660), (245, 102928), (280, 90062), (343, 73520), (392, 64330), (490, 51464), (560, 45031), (686, 36760), (784, 32165), (919, 27440), (980, 25732), (1372, 18380), (1715, 14704), (1838, 13720), (1960, 12866), (2744, 9190), (3430, 7352), (3676, 6860), (3920, 6433), (4595, 5488)]