51354040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{409}}^1$

素因数の和:536

約数の個数: 64

約数和(自身を含む): 120146400

約数和(自身を除く): 68792360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 73, 86, 146, 172, 215, 292, 344, 365, 409, 430, 584, 730, 818, 860, 1460, 1636, 1720, 2045, 2920, 3139, 3272, 4090, 6278, 8180, 12556, 15695, 16360, 17587, 25112, 29857, 31390, 35174, 59714, 62780, 70348, 87935, 119428, 125560, 140696, 149285, 175870, 238856, 298570, 351740, 597140, 703480, 1194280, 1283851, 2567702, 5135404, 6419255, 10270808, 12838510, 25677020, 51354040]

約数ペア:

[(1, 51354040), (2, 25677020), (4, 12838510), (5, 10270808), (8, 6419255), (10, 5135404), (20, 2567702), (40, 1283851), (43, 1194280), (73, 703480), (86, 597140), (146, 351740), (172, 298570), (215, 238856), (292, 175870), (344, 149285), (365, 140696), (409, 125560), (430, 119428), (584, 87935), (730, 70348), (818, 62780), (860, 59714), (1460, 35174), (1636, 31390), (1720, 29857), (2045, 25112), (2920, 17587), (3139, 16360), (3272, 15695), (4090, 12556), (6278, 8180)]