138864208

素因数分解:

$2^4\times 7^1\times {\mathrm{89}}^1\times {\mathrm{13931}}^1$

素因数の和:14035

約数の個数: 40

約数和(自身を含む): 310962240

約数和(自身を除く): 172098032

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 89, 112, 178, 356, 623, 712, 1246, 1424, 2492, 4984, 9968, 13931, 27862, 55724, 97517, 111448, 195034, 222896, 390068, 780136, 1239859, 1560272, 2479718, 4959436, 8679013, 9918872, 17358026, 19837744, 34716052, 69432104, 138864208]

約数ペア:

[(1, 138864208), (2, 69432104), (4, 34716052), (7, 19837744), (8, 17358026), (14, 9918872), (16, 8679013), (28, 4959436), (56, 2479718), (89, 1560272), (112, 1239859), (178, 780136), (356, 390068), (623, 222896), (712, 195034), (1246, 111448), (1424, 97517), (2492, 55724), (4984, 27862), (9968, 13931)]