20790850

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{179}}^1$

素因数の和:315

約数の個数: 48

約数和(自身を含む): 40979520

約数和(自身を除く): 20188670

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 101, 115, 179, 202, 230, 358, 505, 575, 895, 1010, 1150, 1790, 2323, 2525, 4117, 4475, 4646, 5050, 8234, 8950, 11615, 18079, 20585, 23230, 36158, 41170, 58075, 90395, 102925, 116150, 180790, 205850, 415817, 451975, 831634, 903950, 2079085, 4158170, 10395425, 20790850]

約数ペア:

[(1, 20790850), (2, 10395425), (5, 4158170), (10, 2079085), (23, 903950), (25, 831634), (46, 451975), (50, 415817), (101, 205850), (115, 180790), (179, 116150), (202, 102925), (230, 90395), (358, 58075), (505, 41170), (575, 36158), (895, 23230), (1010, 20585), (1150, 18079), (1790, 11615), (2323, 8950), (2525, 8234), (4117, 5050), (4475, 4646)]