25848800

素因数分解:

$2^5\times 5^2\times {\mathrm{79}}^1\times {\mathrm{409}}^1$

素因数の和:508

約数の個数: 72

約数和(自身を含む): 64058400

約数和(自身を除く): 38209600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 79, 80, 100, 158, 160, 200, 316, 395, 400, 409, 632, 790, 800, 818, 1264, 1580, 1636, 1975, 2045, 2528, 3160, 3272, 3950, 4090, 6320, 6544, 7900, 8180, 10225, 12640, 13088, 15800, 16360, 20450, 31600, 32311, 32720, 40900, 63200, 64622, 65440, 81800, 129244, 161555, 163600, 258488, 323110, 327200, 516976, 646220, 807775, 1033952, 1292440, 1615550, 2584880, 3231100, 5169760, 6462200, 12924400, 25848800]

約数ペア:

[(1, 25848800), (2, 12924400), (4, 6462200), (5, 5169760), (8, 3231100), (10, 2584880), (16, 1615550), (20, 1292440), (25, 1033952), (32, 807775), (40, 646220), (50, 516976), (79, 327200), (80, 323110), (100, 258488), (158, 163600), (160, 161555), (200, 129244), (316, 81800), (395, 65440), (400, 64622), (409, 63200), (632, 40900), (790, 32720), (800, 32311), (818, 31600), (1264, 20450), (1580, 16360), (1636, 15800), (1975, 13088), (2045, 12640), (2528, 10225), (3160, 8180), (3272, 7900), (3950, 6544), (4090, 6320)]