77665980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{26417}}^1$

素因数の和:26443

約数の個数: 72

約数和(自身を含む): 252978768

約数和(自身を除く): 175312788

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 26417, 52834, 79251, 105668, 132085, 158502, 184919, 264170, 317004, 369838, 396255, 528340, 554757, 739676, 792510, 924595, 1109514, 1294433, 1585020, 1849190, 2219028, 2588866, 2773785, 3698380, 3883299, 5177732, 5547570, 6472165, 7766598, 11095140, 12944330, 15533196, 19416495, 25888660, 38832990, 77665980]

約数ペア:

[(1, 77665980), (2, 38832990), (3, 25888660), (4, 19416495), (5, 15533196), (6, 12944330), (7, 11095140), (10, 7766598), (12, 6472165), (14, 5547570), (15, 5177732), (20, 3883299), (21, 3698380), (28, 2773785), (30, 2588866), (35, 2219028), (42, 1849190), (49, 1585020), (60, 1294433), (70, 1109514), (84, 924595), (98, 792510), (105, 739676), (140, 554757), (147, 528340), (196, 396255), (210, 369838), (245, 317004), (294, 264170), (420, 184919), (490, 158502), (588, 132085), (735, 105668), (980, 79251), (1470, 52834), (2940, 26417)]