81795015

素因数分解:

$3^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2927}}^1$

素因数の和:2970

約数の個数: 48

約数和(自身を含む): 153474048

約数和(自身を除く): 71679033

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 81, 115, 135, 207, 243, 345, 405, 621, 1035, 1215, 1863, 2927, 3105, 5589, 8781, 9315, 14635, 26343, 27945, 43905, 67321, 79029, 131715, 201963, 237087, 336605, 395145, 605889, 711261, 1009815, 1185435, 1817667, 3029445, 3556305, 5453001, 9088335, 16359003, 27265005, 81795015]

約数ペア:

[(1, 81795015), (3, 27265005), (5, 16359003), (9, 9088335), (15, 5453001), (23, 3556305), (27, 3029445), (45, 1817667), (69, 1185435), (81, 1009815), (115, 711261), (135, 605889), (207, 395145), (243, 336605), (345, 237087), (405, 201963), (621, 131715), (1035, 79029), (1215, 67321), (1863, 43905), (2927, 27945), (3105, 26343), (5589, 14635), (8781, 9315)]