12900780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71671}}^1$

素因数の和:71686

約数の個数: 36

約数和(自身を含む): 39132912

約数和(自身を除く): 26232132

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 71671, 143342, 215013, 286684, 358355, 430026, 645039, 716710, 860052, 1075065, 1290078, 1433420, 2150130, 2580156, 3225195, 4300260, 6450390, 12900780]

約数ペア:

[(1, 12900780), (2, 6450390), (3, 4300260), (4, 3225195), (5, 2580156), (6, 2150130), (9, 1433420), (10, 1290078), (12, 1075065), (15, 860052), (18, 716710), (20, 645039), (30, 430026), (36, 358355), (45, 286684), (60, 215013), (90, 143342), (180, 71671)]