128649780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{102103}}^1$

素因数の和:102125

約数の個数: 72

約数和(自身を含む): 445990272

約数和(自身を除く): 317340492

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, 102103, 204206, 306309, 408412, 510515, 612618, 714721, 918927, 1021030, 1225236, 1429442, 1531545, 1837854, 2042060, 2144163, 2858884, 3063090, 3573605, 3675708, 4288326, 4594635, 6126180, 6432489, 7147210, 8576652, 9189270, 10720815, 12864978, 14294420, 18378540, 21441630, 25729956, 32162445, 42883260, 64324890, 128649780]

約数ペア:

[(1, 128649780), (2, 64324890), (3, 42883260), (4, 32162445), (5, 25729956), (6, 21441630), (7, 18378540), (9, 14294420), (10, 12864978), (12, 10720815), (14, 9189270), (15, 8576652), (18, 7147210), (20, 6432489), (21, 6126180), (28, 4594635), (30, 4288326), (35, 3675708), (36, 3573605), (42, 3063090), (45, 2858884), (60, 2144163), (63, 2042060), (70, 1837854), (84, 1531545), (90, 1429442), (105, 1225236), (126, 1021030), (140, 918927), (180, 714721), (210, 612618), (252, 510515), (315, 408412), (420, 306309), (630, 204206), (1260, 102103)]