20479080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1087}}^1$

素因数の和:1258

約数の個数: 64

約数和(自身を含む): 61885440

約数和(自身を除く): 41406360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 157, 314, 471, 628, 785, 942, 1087, 1256, 1570, 1884, 2174, 2355, 3140, 3261, 3768, 4348, 4710, 5435, 6280, 6522, 8696, 9420, 10870, 13044, 16305, 18840, 21740, 26088, 32610, 43480, 65220, 130440, 170659, 341318, 511977, 682636, 853295, 1023954, 1365272, 1706590, 2047908, 2559885, 3413180, 4095816, 5119770, 6826360, 10239540, 20479080]

約数ペア:

[(1, 20479080), (2, 10239540), (3, 6826360), (4, 5119770), (5, 4095816), (6, 3413180), (8, 2559885), (10, 2047908), (12, 1706590), (15, 1365272), (20, 1023954), (24, 853295), (30, 682636), (40, 511977), (60, 341318), (120, 170659), (157, 130440), (314, 65220), (471, 43480), (628, 32610), (785, 26088), (942, 21740), (1087, 18840), (1256, 16305), (1570, 13044), (1884, 10870), (2174, 9420), (2355, 8696), (3140, 6522), (3261, 6280), (3768, 5435), (4348, 4710)]