20502400

素因数分解:

$2^7\times 5^2\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:216

約数の個数: 96

約数和(自身を含む): 52173000

約数和(自身を除く): 31670600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 43, 50, 64, 80, 86, 100, 128, 149, 160, 172, 200, 215, 298, 320, 344, 400, 430, 596, 640, 688, 745, 800, 860, 1075, 1192, 1376, 1490, 1600, 1720, 2150, 2384, 2752, 2980, 3200, 3440, 3725, 4300, 4768, 5504, 5960, 6407, 6880, 7450, 8600, 9536, 11920, 12814, 13760, 14900, 17200, 19072, 23840, 25628, 27520, 29800, 32035, 34400, 47680, 51256, 59600, 64070, 68800, 95360, 102512, 119200, 128140, 137600, 160175, 205024, 238400, 256280, 320350, 410048, 476800, 512560, 640700, 820096, 1025120, 1281400, 2050240, 2562800, 4100480, 5125600, 10251200, 20502400]

約数ペア:

[(1, 20502400), (2, 10251200), (4, 5125600), (5, 4100480), (8, 2562800), (10, 2050240), (16, 1281400), (20, 1025120), (25, 820096), (32, 640700), (40, 512560), (43, 476800), (50, 410048), (64, 320350), (80, 256280), (86, 238400), (100, 205024), (128, 160175), (149, 137600), (160, 128140), (172, 119200), (200, 102512), (215, 95360), (298, 68800), (320, 64070), (344, 59600), (400, 51256), (430, 47680), (596, 34400), (640, 32035), (688, 29800), (745, 27520), (800, 25628), (860, 23840), (1075, 19072), (1192, 17200), (1376, 14900), (1490, 13760), (1600, 12814), (1720, 11920), (2150, 9536), (2384, 8600), (2752, 7450), (2980, 6880), (3200, 6407), (3440, 5960), (3725, 5504), (4300, 4768)]