15125720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{401}}^1$

素因数の和:476

約数の個数: 64

約数和(自身を含む): 36469440

約数和(自身を除く): 21343720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 41, 46, 82, 92, 115, 164, 184, 205, 230, 328, 401, 410, 460, 802, 820, 920, 943, 1604, 1640, 1886, 2005, 3208, 3772, 4010, 4715, 7544, 8020, 9223, 9430, 16040, 16441, 18446, 18860, 32882, 36892, 37720, 46115, 65764, 73784, 82205, 92230, 131528, 164410, 184460, 328820, 368920, 378143, 657640, 756286, 1512572, 1890715, 3025144, 3781430, 7562860, 15125720]

約数ペア:

[(1, 15125720), (2, 7562860), (4, 3781430), (5, 3025144), (8, 1890715), (10, 1512572), (20, 756286), (23, 657640), (40, 378143), (41, 368920), (46, 328820), (82, 184460), (92, 164410), (115, 131528), (164, 92230), (184, 82205), (205, 73784), (230, 65764), (328, 46115), (401, 37720), (410, 36892), (460, 32882), (802, 18860), (820, 18446), (920, 16441), (943, 16040), (1604, 9430), (1640, 9223), (1886, 8020), (2005, 7544), (3208, 4715), (3772, 4010)]