257545418

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{4783}}^1$

素因数の和:4926

約数の個数: 32

約数和(自身を含む): 442041600

約数和(自身を除く): 184496182

約数列:

[1, 2, 13, 19, 26, 38, 109, 218, 247, 494, 1417, 2071, 2834, 4142, 4783, 9566, 26923, 53846, 62179, 90877, 124358, 181754, 521347, 1042694, 1181401, 2362802, 6777511, 9905593, 13555022, 19811186, 128772709, 257545418]

約数ペア:

[(1, 257545418), (2, 128772709), (13, 19811186), (19, 13555022), (26, 9905593), (38, 6777511), (109, 2362802), (218, 1181401), (247, 1042694), (494, 521347), (1417, 181754), (2071, 124358), (2834, 90877), (4142, 62179), (4783, 53846), (9566, 26923)]