2780820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{2207}}^1$

素因数の和:2229

約数の個数: 72

約数和(自身を含む): 9644544

約数和(自身を除く): 6863724

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, 2207, 4414, 6621, 8828, 11035, 13242, 15449, 19863, 22070, 26484, 30898, 33105, 39726, 44140, 46347, 61796, 66210, 77245, 79452, 92694, 99315, 132420, 139041, 154490, 185388, 198630, 231735, 278082, 308980, 397260, 463470, 556164, 695205, 926940, 1390410, 2780820]

約数ペア:

[(1, 2780820), (2, 1390410), (3, 926940), (4, 695205), (5, 556164), (6, 463470), (7, 397260), (9, 308980), (10, 278082), (12, 231735), (14, 198630), (15, 185388), (18, 154490), (20, 139041), (21, 132420), (28, 99315), (30, 92694), (35, 79452), (36, 77245), (42, 66210), (45, 61796), (60, 46347), (63, 44140), (70, 39726), (84, 33105), (90, 30898), (105, 26484), (126, 22070), (140, 19863), (180, 15449), (210, 13242), (252, 11035), (315, 8828), (420, 6621), (630, 4414), (1260, 2207)]