4780000

素因数分解:

$2^5\times 5^4\times {\mathrm{239}}^1$

素因数の和:269

約数の個数: 60

約数和(自身を含む): 11808720

約数和(自身を除く): 7028720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 239, 250, 400, 478, 500, 625, 800, 956, 1000, 1195, 1250, 1912, 2000, 2390, 2500, 3824, 4000, 4780, 5000, 5975, 7648, 9560, 10000, 11950, 19120, 20000, 23900, 29875, 38240, 47800, 59750, 95600, 119500, 149375, 191200, 239000, 298750, 478000, 597500, 956000, 1195000, 2390000, 4780000]

約数ペア:

[(1, 4780000), (2, 2390000), (4, 1195000), (5, 956000), (8, 597500), (10, 478000), (16, 298750), (20, 239000), (25, 191200), (32, 149375), (40, 119500), (50, 95600), (80, 59750), (100, 47800), (125, 38240), (160, 29875), (200, 23900), (239, 20000), (250, 19120), (400, 11950), (478, 10000), (500, 9560), (625, 7648), (800, 5975), (956, 5000), (1000, 4780), (1195, 4000), (1250, 3824), (1912, 2500), (2000, 2390)]