8260020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{421}}^1$

素因数の和:545

約数の個数: 72

約数和(自身を含む): 25345320

約数和(自身を除く): 17085300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 109, 180, 218, 327, 421, 436, 545, 654, 842, 981, 1090, 1263, 1308, 1635, 1684, 1962, 2105, 2180, 2526, 3270, 3789, 3924, 4210, 4905, 5052, 6315, 6540, 7578, 8420, 9810, 12630, 15156, 18945, 19620, 25260, 37890, 45889, 75780, 91778, 137667, 183556, 229445, 275334, 413001, 458890, 550668, 688335, 826002, 917780, 1376670, 1652004, 2065005, 2753340, 4130010, 8260020]

約数ペア:

[(1, 8260020), (2, 4130010), (3, 2753340), (4, 2065005), (5, 1652004), (6, 1376670), (9, 917780), (10, 826002), (12, 688335), (15, 550668), (18, 458890), (20, 413001), (30, 275334), (36, 229445), (45, 183556), (60, 137667), (90, 91778), (109, 75780), (180, 45889), (218, 37890), (327, 25260), (421, 19620), (436, 18945), (545, 15156), (654, 12630), (842, 9810), (981, 8420), (1090, 7578), (1263, 6540), (1308, 6315), (1635, 5052), (1684, 4905), (1962, 4210), (2105, 3924), (2180, 3789), (2526, 3270)]