31920345

素因数分解:

$3^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:207

約数の個数: 64

約数和(自身を含む): 59673600

約数和(自身を除く): 27753255

約数列:

[1, 3, 5, 9, 15, 27, 41, 45, 73, 79, 123, 135, 205, 219, 237, 365, 369, 395, 615, 657, 711, 1095, 1107, 1185, 1845, 1971, 2133, 2993, 3239, 3285, 3555, 5535, 5767, 8979, 9717, 9855, 10665, 14965, 16195, 17301, 26937, 28835, 29151, 44895, 48585, 51903, 80811, 86505, 87453, 134685, 145755, 155709, 236447, 259515, 404055, 437265, 709341, 778545, 1182235, 2128023, 3546705, 6384069, 10640115, 31920345]

約数ペア:

[(1, 31920345), (3, 10640115), (5, 6384069), (9, 3546705), (15, 2128023), (27, 1182235), (41, 778545), (45, 709341), (73, 437265), (79, 404055), (123, 259515), (135, 236447), (205, 155709), (219, 145755), (237, 134685), (365, 87453), (369, 86505), (395, 80811), (615, 51903), (657, 48585), (711, 44895), (1095, 29151), (1107, 28835), (1185, 26937), (1845, 17301), (1971, 16195), (2133, 14965), (2993, 10665), (3239, 9855), (3285, 9717), (3555, 8979), (5535, 5767)]