28020780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{155671}}^1$

素因数の和:155686

約数の個数: 36

約数和(自身を含む): 84996912

約数和(自身を除く): 56976132

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 155671, 311342, 467013, 622684, 778355, 934026, 1401039, 1556710, 1868052, 2335065, 2802078, 3113420, 4670130, 5604156, 7005195, 9340260, 14010390, 28020780]

約数ペア:

[(1, 28020780), (2, 14010390), (3, 9340260), (4, 7005195), (5, 5604156), (6, 4670130), (9, 3113420), (10, 2802078), (12, 2335065), (15, 1868052), (18, 1556710), (20, 1401039), (30, 934026), (36, 778355), (45, 622684), (60, 467013), (90, 311342), (180, 155671)]