20811240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{57809}}^1$

素因数の和:57826

約数の個数: 48

約数和(自身を含む): 67637700

約数和(自身を除く): 46826460

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, 57809, 115618, 173427, 231236, 289045, 346854, 462472, 520281, 578090, 693708, 867135, 1040562, 1156180, 1387416, 1734270, 2081124, 2312360, 2601405, 3468540, 4162248, 5202810, 6937080, 10405620, 20811240]

約数ペア:

[(1, 20811240), (2, 10405620), (3, 6937080), (4, 5202810), (5, 4162248), (6, 3468540), (8, 2601405), (9, 2312360), (10, 2081124), (12, 1734270), (15, 1387416), (18, 1156180), (20, 1040562), (24, 867135), (30, 693708), (36, 578090), (40, 520281), (45, 462472), (60, 346854), (72, 289045), (90, 231236), (120, 173427), (180, 115618), (360, 57809)]