28807020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{14549}}^1$

素因数の和:14575

約数の個数: 72

約数和(自身を含む): 95331600

約数和(自身を除く): 66524580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 14549, 29098, 43647, 58196, 72745, 87294, 130941, 145490, 160039, 174588, 218235, 261882, 290980, 320078, 436470, 480117, 523764, 640156, 654705, 800195, 872940, 960234, 1309410, 1440351, 1600390, 1920468, 2400585, 2618820, 2880702, 3200780, 4801170, 5761404, 7201755, 9602340, 14403510, 28807020]

約数ペア:

[(1, 28807020), (2, 14403510), (3, 9602340), (4, 7201755), (5, 5761404), (6, 4801170), (9, 3200780), (10, 2880702), (11, 2618820), (12, 2400585), (15, 1920468), (18, 1600390), (20, 1440351), (22, 1309410), (30, 960234), (33, 872940), (36, 800195), (44, 654705), (45, 640156), (55, 523764), (60, 480117), (66, 436470), (90, 320078), (99, 290980), (110, 261882), (132, 218235), (165, 174588), (180, 160039), (198, 145490), (220, 130941), (330, 87294), (396, 72745), (495, 58196), (660, 43647), (990, 29098), (1980, 14549)]