20122020

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{12421}}^1$

素因数の和:12442

約数の個数: 60

約数和(自身を含む): 63128604

約数和(自身を除く): 43006584

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 12421, 24842, 37263, 49684, 62105, 74526, 111789, 124210, 149052, 186315, 223578, 248420, 335367, 372630, 447156, 558945, 670734, 745260, 1006101, 1117890, 1341468, 1676835, 2012202, 2235780, 3353670, 4024404, 5030505, 6707340, 10061010, 20122020]

約数ペア:

[(1, 20122020), (2, 10061010), (3, 6707340), (4, 5030505), (5, 4024404), (6, 3353670), (9, 2235780), (10, 2012202), (12, 1676835), (15, 1341468), (18, 1117890), (20, 1006101), (27, 745260), (30, 670734), (36, 558945), (45, 447156), (54, 372630), (60, 335367), (81, 248420), (90, 223578), (108, 186315), (135, 149052), (162, 124210), (180, 111789), (270, 74526), (324, 62105), (405, 49684), (540, 37263), (810, 24842), (1620, 12421)]