31216725

素因数分解:

$3^3\times 5^2\times {\mathrm{103}}^1\times {\mathrm{449}}^1$

素因数の和:571

約数の個数: 48

約数和(自身を含む): 58032000

約数和(自身を除く): 26815275

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 103, 135, 225, 309, 449, 515, 675, 927, 1347, 1545, 2245, 2575, 2781, 4041, 4635, 6735, 7725, 11225, 12123, 13905, 20205, 23175, 33675, 46247, 60615, 69525, 101025, 138741, 231235, 303075, 416223, 693705, 1156175, 1248669, 2081115, 3468525, 6243345, 10405575, 31216725]

約数ペア:

[(1, 31216725), (3, 10405575), (5, 6243345), (9, 3468525), (15, 2081115), (25, 1248669), (27, 1156175), (45, 693705), (75, 416223), (103, 303075), (135, 231235), (225, 138741), (309, 101025), (449, 69525), (515, 60615), (675, 46247), (927, 33675), (1347, 23175), (1545, 20205), (2245, 13905), (2575, 12123), (2781, 11225), (4041, 7725), (4635, 6735)]