25735040

素因数分解:

$2^7\times 5^1\times {\mathrm{79}}^1\times {\mathrm{509}}^1$

素因数の和:607

約数の個数: 64

約数和(自身を含む): 62424000

約数和(自身を除く): 36688960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 316, 320, 395, 509, 632, 640, 790, 1018, 1264, 1580, 2036, 2528, 2545, 3160, 4072, 5056, 5090, 6320, 8144, 10112, 10180, 12640, 16288, 20360, 25280, 32576, 40211, 40720, 50560, 65152, 80422, 81440, 160844, 162880, 201055, 321688, 325760, 402110, 643376, 804220, 1286752, 1608440, 2573504, 3216880, 5147008, 6433760, 12867520, 25735040]

約数ペア:

[(1, 25735040), (2, 12867520), (4, 6433760), (5, 5147008), (8, 3216880), (10, 2573504), (16, 1608440), (20, 1286752), (32, 804220), (40, 643376), (64, 402110), (79, 325760), (80, 321688), (128, 201055), (158, 162880), (160, 160844), (316, 81440), (320, 80422), (395, 65152), (509, 50560), (632, 40720), (640, 40211), (790, 32576), (1018, 25280), (1264, 20360), (1580, 16288), (2036, 12640), (2528, 10180), (2545, 10112), (3160, 8144), (4072, 6320), (5056, 5090)]