25804520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{587}}^1$

素因数の和:762

約数の個数: 64

約数和(自身を含む): 66890880

約数和(自身を除く): 41086360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 157, 280, 314, 587, 628, 785, 1099, 1174, 1256, 1570, 2198, 2348, 2935, 3140, 4109, 4396, 4696, 5495, 5870, 6280, 8218, 8792, 10990, 11740, 16436, 20545, 21980, 23480, 32872, 41090, 43960, 82180, 92159, 164360, 184318, 368636, 460795, 645113, 737272, 921590, 1290226, 1843180, 2580452, 3225565, 3686360, 5160904, 6451130, 12902260, 25804520]

約数ペア:

[(1, 25804520), (2, 12902260), (4, 6451130), (5, 5160904), (7, 3686360), (8, 3225565), (10, 2580452), (14, 1843180), (20, 1290226), (28, 921590), (35, 737272), (40, 645113), (56, 460795), (70, 368636), (140, 184318), (157, 164360), (280, 92159), (314, 82180), (587, 43960), (628, 41090), (785, 32872), (1099, 23480), (1174, 21980), (1256, 20545), (1570, 16436), (2198, 11740), (2348, 10990), (2935, 8792), (3140, 8218), (4109, 6280), (4396, 5870), (4696, 5495)]