20809080

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{57803}}^1$

素因数の和:57820

約数の個数: 48

約数和(自身を含む): 67630680

約数和(自身を除く): 46821600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 57803, 115606, 173409, 231212, 289015, 346818, 462424, 520227, 578030, 693636, 867045, 1040454, 1156060, 1387272, 1734090, 2080908, 2312120, 2601135, 3468180, 4161816, 5202270, 6936360, 10404540, 20809080]

約数ペア:

[(1, 20809080), (2, 10404540), (3, 6936360), (4, 5202270), (5, 4161816), (6, 3468180), (8, 2601135), (9, 2312120), (10, 2080908), (12, 1734090), (15, 1387272), (18, 1156060), (20, 1040454), (24, 867045), (30, 693636), (36, 578030), (40, 520227), (45, 462424), (60, 346818), (72, 289015), (90, 231212), (120, 173409), (180, 115606), (360, 57803)]