78892020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4021}}^1$

素因数の和:4145

約数の個数: 72

約数和(自身を含む): 241561320

約数和(自身を除く): 162669300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 109, 180, 218, 327, 436, 545, 654, 981, 1090, 1308, 1635, 1962, 2180, 3270, 3924, 4021, 4905, 6540, 8042, 9810, 12063, 16084, 19620, 20105, 24126, 36189, 40210, 48252, 60315, 72378, 80420, 120630, 144756, 180945, 241260, 361890, 438289, 723780, 876578, 1314867, 1753156, 2191445, 2629734, 3944601, 4382890, 5259468, 6574335, 7889202, 8765780, 13148670, 15778404, 19723005, 26297340, 39446010, 78892020]

約数ペア:

[(1, 78892020), (2, 39446010), (3, 26297340), (4, 19723005), (5, 15778404), (6, 13148670), (9, 8765780), (10, 7889202), (12, 6574335), (15, 5259468), (18, 4382890), (20, 3944601), (30, 2629734), (36, 2191445), (45, 1753156), (60, 1314867), (90, 876578), (109, 723780), (180, 438289), (218, 361890), (327, 241260), (436, 180945), (545, 144756), (654, 120630), (981, 80420), (1090, 72378), (1308, 60315), (1635, 48252), (1962, 40210), (2180, 36189), (3270, 24126), (3924, 20105), (4021, 19620), (4905, 16084), (6540, 12063), (8042, 9810)]