788896620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{61729}}^1$

素因数の和:61815

約数の個数: 72

約数和(自身を含む): 2426729760

約数和(自身を除く): 1637833140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, 12780, 61729, 123458, 185187, 246916, 308645, 370374, 555561, 617290, 740748, 925935, 1111122, 1234580, 1851870, 2222244, 2777805, 3703740, 4382759, 5555610, 8765518, 11111220, 13148277, 17531036, 21913795, 26296554, 39444831, 43827590, 52593108, 65741385, 78889662, 87655180, 131482770, 157779324, 197224155, 262965540, 394448310, 788896620]

約数ペア:

[(1, 788896620), (2, 394448310), (3, 262965540), (4, 197224155), (5, 157779324), (6, 131482770), (9, 87655180), (10, 78889662), (12, 65741385), (15, 52593108), (18, 43827590), (20, 39444831), (30, 26296554), (36, 21913795), (45, 17531036), (60, 13148277), (71, 11111220), (90, 8765518), (142, 5555610), (180, 4382759), (213, 3703740), (284, 2777805), (355, 2222244), (426, 1851870), (639, 1234580), (710, 1111122), (852, 925935), (1065, 740748), (1278, 617290), (1420, 555561), (2130, 370374), (2556, 308645), (3195, 246916), (4260, 185187), (6390, 123458), (12780, 61729)]