28478800

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{1453}}^1$

素因数の和:1485

約数の個数: 90

約数和(自身を含む): 79645758

約数和(自身を除く): 51166958

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 175, 196, 200, 245, 280, 350, 392, 400, 490, 560, 700, 784, 980, 1225, 1400, 1453, 1960, 2450, 2800, 2906, 3920, 4900, 5812, 7265, 9800, 10171, 11624, 14530, 19600, 20342, 23248, 29060, 36325, 40684, 50855, 58120, 71197, 72650, 81368, 101710, 116240, 142394, 145300, 162736, 203420, 254275, 284788, 290600, 355985, 406840, 508550, 569576, 581200, 711970, 813680, 1017100, 1139152, 1423940, 1779925, 2034200, 2847880, 3559850, 4068400, 5695760, 7119700, 14239400, 28478800]

約数ペア:

[(1, 28478800), (2, 14239400), (4, 7119700), (5, 5695760), (7, 4068400), (8, 3559850), (10, 2847880), (14, 2034200), (16, 1779925), (20, 1423940), (25, 1139152), (28, 1017100), (35, 813680), (40, 711970), (49, 581200), (50, 569576), (56, 508550), (70, 406840), (80, 355985), (98, 290600), (100, 284788), (112, 254275), (140, 203420), (175, 162736), (196, 145300), (200, 142394), (245, 116240), (280, 101710), (350, 81368), (392, 72650), (400, 71197), (490, 58120), (560, 50855), (700, 40684), (784, 36325), (980, 29060), (1225, 23248), (1400, 20342), (1453, 19600), (1960, 14530), (2450, 11624), (2800, 10171), (2906, 9800), (3920, 7265), (4900, 5812)]