51609040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{587}}^1$

素因数の和:764

約数の個数: 80

約数和(自身を含む): 138241152

約数和(自身を除く): 86632112

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 157, 280, 314, 560, 587, 628, 785, 1099, 1174, 1256, 1570, 2198, 2348, 2512, 2935, 3140, 4109, 4396, 4696, 5495, 5870, 6280, 8218, 8792, 9392, 10990, 11740, 12560, 16436, 17584, 20545, 21980, 23480, 32872, 41090, 43960, 46960, 65744, 82180, 87920, 92159, 164360, 184318, 328720, 368636, 460795, 645113, 737272, 921590, 1290226, 1474544, 1843180, 2580452, 3225565, 3686360, 5160904, 6451130, 7372720, 10321808, 12902260, 25804520, 51609040]

約数ペア:

[(1, 51609040), (2, 25804520), (4, 12902260), (5, 10321808), (7, 7372720), (8, 6451130), (10, 5160904), (14, 3686360), (16, 3225565), (20, 2580452), (28, 1843180), (35, 1474544), (40, 1290226), (56, 921590), (70, 737272), (80, 645113), (112, 460795), (140, 368636), (157, 328720), (280, 184318), (314, 164360), (560, 92159), (587, 87920), (628, 82180), (785, 65744), (1099, 46960), (1174, 43960), (1256, 41090), (1570, 32872), (2198, 23480), (2348, 21980), (2512, 20545), (2935, 17584), (3140, 16436), (4109, 12560), (4396, 11740), (4696, 10990), (5495, 9392), (5870, 8792), (6280, 8218)]