19937550

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{5779}}^1$

素因数の和:5817

約数の個数: 48

約数和(自身を含む): 51603840

約数和(自身を除く): 31666290

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 25, 30, 46, 50, 69, 75, 115, 138, 150, 230, 345, 575, 690, 1150, 1725, 3450, 5779, 11558, 17337, 28895, 34674, 57790, 86685, 132917, 144475, 173370, 265834, 288950, 398751, 433425, 664585, 797502, 866850, 1329170, 1993755, 3322925, 3987510, 6645850, 9968775, 19937550]

約数ペア:

[(1, 19937550), (2, 9968775), (3, 6645850), (5, 3987510), (6, 3322925), (10, 1993755), (15, 1329170), (23, 866850), (25, 797502), (30, 664585), (46, 433425), (50, 398751), (69, 288950), (75, 265834), (115, 173370), (138, 144475), (150, 132917), (230, 86685), (345, 57790), (575, 34674), (690, 28895), (1150, 17337), (1725, 11558), (3450, 5779)]