20197780905

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{761}}^1\times {\mathrm{41149}}^1$

素因数の和:41961

約数の個数: 32

約数和(自身を含む): 33112252800

約数和(自身を除く): 12914471895

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 761, 2283, 3805, 11415, 32723, 41149, 98169, 123447, 163615, 205745, 490845, 617235, 1769407, 5308221, 8847035, 26541105, 31314389, 93943167, 156571945, 469715835, 1346518727, 4039556181, 6732593635, 20197780905]

約数ペア:

[(1, 20197780905), (3, 6732593635), (5, 4039556181), (15, 1346518727), (43, 469715835), (129, 156571945), (215, 93943167), (645, 31314389), (761, 26541105), (2283, 8847035), (3805, 5308221), (11415, 1769407), (32723, 617235), (41149, 490845), (98169, 205745), (123447, 163615)]