221440860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1230227}}^1$

素因数の和:1230242

約数の個数: 36

約数和(自身を含む): 671704488

約数和(自身を除く): 450263628

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1230227, 2460454, 3690681, 4920908, 6151135, 7381362, 11072043, 12302270, 14762724, 18453405, 22144086, 24604540, 36906810, 44288172, 55360215, 73813620, 110720430, 221440860]

約数ペア:

[(1, 221440860), (2, 110720430), (3, 73813620), (4, 55360215), (5, 44288172), (6, 36906810), (9, 24604540), (10, 22144086), (12, 18453405), (15, 14762724), (18, 12302270), (20, 11072043), (30, 7381362), (36, 6151135), (45, 4920908), (60, 3690681), (90, 2460454), (180, 1230227)]