20218320

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{28081}}^1$

素因数の和:28100

約数の個数: 60

約数和(自身を含む): 67902276

約数和(自身を除く): 47683956

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 28081, 56162, 84243, 112324, 140405, 168486, 224648, 252729, 280810, 336972, 421215, 449296, 505458, 561620, 673944, 842430, 1010916, 1123240, 1263645, 1347888, 1684860, 2021832, 2246480, 2527290, 3369720, 4043664, 5054580, 6739440, 10109160, 20218320]

約数ペア:

[(1, 20218320), (2, 10109160), (3, 6739440), (4, 5054580), (5, 4043664), (6, 3369720), (8, 2527290), (9, 2246480), (10, 2021832), (12, 1684860), (15, 1347888), (16, 1263645), (18, 1123240), (20, 1010916), (24, 842430), (30, 673944), (36, 561620), (40, 505458), (45, 449296), (48, 421215), (60, 336972), (72, 280810), (80, 252729), (90, 224648), (120, 168486), (144, 140405), (180, 112324), (240, 84243), (360, 56162), (720, 28081)]