19958964

素因数分解:

$2^2\times 3^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{359}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 48263040

約数和(自身を除く): 28304076

約数列:

[1, 2, 3, 4, 6, 12, 41, 82, 113, 123, 164, 226, 246, 339, 359, 452, 492, 678, 718, 1077, 1356, 1436, 2154, 4308, 4633, 9266, 13899, 14719, 18532, 27798, 29438, 40567, 44157, 55596, 58876, 81134, 88314, 121701, 162268, 176628, 243402, 486804, 1663247, 3326494, 4989741, 6652988, 9979482, 19958964]

約数ペア:

[(1, 19958964), (2, 9979482), (3, 6652988), (4, 4989741), (6, 3326494), (12, 1663247), (41, 486804), (82, 243402), (113, 176628), (123, 162268), (164, 121701), (226, 88314), (246, 81134), (339, 58876), (359, 55596), (452, 44157), (492, 40567), (678, 29438), (718, 27798), (1077, 18532), (1356, 14719), (1436, 13899), (2154, 9266), (4308, 4633)]