19981620

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{37003}}^1$

素因数の和:37021

約数の個数: 48

約数和(自身を含む): 62166720

約数和(自身を除く): 42185100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 37003, 74006, 111009, 148012, 185015, 222018, 333027, 370030, 444036, 555045, 666054, 740060, 999081, 1110090, 1332108, 1665135, 1998162, 2220180, 3330270, 3996324, 4995405, 6660540, 9990810, 19981620]

約数ペア:

[(1, 19981620), (2, 9990810), (3, 6660540), (4, 4995405), (5, 3996324), (6, 3330270), (9, 2220180), (10, 1998162), (12, 1665135), (15, 1332108), (18, 1110090), (20, 999081), (27, 740060), (30, 666054), (36, 555045), (45, 444036), (54, 370030), (60, 333027), (90, 222018), (108, 185015), (135, 148012), (180, 111009), (270, 74006), (540, 37003)]