18542140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{233}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 41041728

約数和(自身を除く): 22499588

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 173, 230, 233, 346, 460, 466, 692, 865, 932, 1165, 1730, 2330, 3460, 3979, 4660, 5359, 7958, 10718, 15916, 19895, 21436, 26795, 39790, 40309, 53590, 79580, 80618, 107180, 161236, 201545, 403090, 806180, 927107, 1854214, 3708428, 4635535, 9271070, 18542140]

約数ペア:

[(1, 18542140), (2, 9271070), (4, 4635535), (5, 3708428), (10, 1854214), (20, 927107), (23, 806180), (46, 403090), (92, 201545), (115, 161236), (173, 107180), (230, 80618), (233, 79580), (346, 53590), (460, 40309), (466, 39790), (692, 26795), (865, 21436), (932, 19895), (1165, 15916), (1730, 10718), (2330, 7958), (3460, 5359), (3979, 4660)]