77778540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{61729}}^1$

素因数の和:61751

約数の個数: 72

約数和(自身を含む): 269636640

約数和(自身を除く): 191858100

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, 61729, 123458, 185187, 246916, 308645, 370374, 432103, 555561, 617290, 740748, 864206, 925935, 1111122, 1234580, 1296309, 1728412, 1851870, 2160515, 2222244, 2592618, 2777805, 3703740, 3888927, 4321030, 5185236, 5555610, 6481545, 7777854, 8642060, 11111220, 12963090, 15555708, 19444635, 25926180, 38889270, 77778540]

約数ペア:

[(1, 77778540), (2, 38889270), (3, 25926180), (4, 19444635), (5, 15555708), (6, 12963090), (7, 11111220), (9, 8642060), (10, 7777854), (12, 6481545), (14, 5555610), (15, 5185236), (18, 4321030), (20, 3888927), (21, 3703740), (28, 2777805), (30, 2592618), (35, 2222244), (36, 2160515), (42, 1851870), (45, 1728412), (60, 1296309), (63, 1234580), (70, 1111122), (84, 925935), (90, 864206), (105, 740748), (126, 617290), (140, 555561), (180, 432103), (210, 370374), (252, 308645), (315, 246916), (420, 185187), (630, 123458), (1260, 61729)]