18388860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{43783}}^1$

素因数の和:43802

約数の個数: 48

約数和(自身を含む): 58845696

約数和(自身を除く): 40456836

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 43783, 87566, 131349, 175132, 218915, 262698, 306481, 437830, 525396, 612962, 656745, 875660, 919443, 1225924, 1313490, 1532405, 1838886, 2626980, 3064810, 3677772, 4597215, 6129620, 9194430, 18388860]

約数ペア:

[(1, 18388860), (2, 9194430), (3, 6129620), (4, 4597215), (5, 3677772), (6, 3064810), (7, 2626980), (10, 1838886), (12, 1532405), (14, 1313490), (15, 1225924), (20, 919443), (21, 875660), (28, 656745), (30, 612962), (35, 525396), (42, 437830), (60, 306481), (70, 262698), (84, 218915), (105, 175132), (140, 131349), (210, 87566), (420, 43783)]