28479800

素因数分解:

$2^3\times 5^2\times {\mathrm{157}}^1\times {\mathrm{907}}^1$

素因数の和:1080

約数の個数: 48

約数和(自身を含む): 66710760

約数和(自身を除く): 38230960

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 157, 200, 314, 628, 785, 907, 1256, 1570, 1814, 3140, 3628, 3925, 4535, 6280, 7256, 7850, 9070, 15700, 18140, 22675, 31400, 36280, 45350, 90700, 142399, 181400, 284798, 569596, 711995, 1139192, 1423990, 2847980, 3559975, 5695960, 7119950, 14239900, 28479800]

約数ペア:

[(1, 28479800), (2, 14239900), (4, 7119950), (5, 5695960), (8, 3559975), (10, 2847980), (20, 1423990), (25, 1139192), (40, 711995), (50, 569596), (100, 284798), (157, 181400), (200, 142399), (314, 90700), (628, 45350), (785, 36280), (907, 31400), (1256, 22675), (1570, 18140), (1814, 15700), (3140, 9070), (3628, 7850), (3925, 7256), (4535, 6280)]