257960000

素因数分解:

$2^6\times 5^4\times {\mathrm{6449}}^1$

素因数の和:6481

約数の個数: 70

約数和(自身を含む): 639756150

約数和(自身を除く): 381796150

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 625, 800, 1000, 1250, 1600, 2000, 2500, 4000, 5000, 6449, 8000, 10000, 12898, 20000, 25796, 32245, 40000, 51592, 64490, 103184, 128980, 161225, 206368, 257960, 322450, 412736, 515920, 644900, 806125, 1031840, 1289800, 1612250, 2063680, 2579600, 3224500, 4030625, 5159200, 6449000, 8061250, 10318400, 12898000, 16122500, 25796000, 32245000, 51592000, 64490000, 128980000, 257960000]

約数ペア:

[(1, 257960000), (2, 128980000), (4, 64490000), (5, 51592000), (8, 32245000), (10, 25796000), (16, 16122500), (20, 12898000), (25, 10318400), (32, 8061250), (40, 6449000), (50, 5159200), (64, 4030625), (80, 3224500), (100, 2579600), (125, 2063680), (160, 1612250), (200, 1289800), (250, 1031840), (320, 806125), (400, 644900), (500, 515920), (625, 412736), (800, 322450), (1000, 257960), (1250, 206368), (1600, 161225), (2000, 128980), (2500, 103184), (4000, 64490), (5000, 51592), (6449, 40000), (8000, 32245), (10000, 25796), (12898, 20000)]