20219400208

素因数分解:

$2^4\times 7^1\times {\mathrm{89}}^1\times {\mathrm{2028431}}^1$

素因数の和:2028535

約数の個数: 40

約数和(自身を含む): 45274602240

約数和(自身を除く): 25055202032

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 89, 112, 178, 356, 623, 712, 1246, 1424, 2492, 4984, 9968, 2028431, 4056862, 8113724, 14199017, 16227448, 28398034, 32454896, 56796068, 113592136, 180530359, 227184272, 361060718, 722121436, 1263712513, 1444242872, 2527425026, 2888485744, 5054850052, 10109700104, 20219400208]

約数ペア:

[(1, 20219400208), (2, 10109700104), (4, 5054850052), (7, 2888485744), (8, 2527425026), (14, 1444242872), (16, 1263712513), (28, 722121436), (56, 361060718), (89, 227184272), (112, 180530359), (178, 113592136), (356, 56796068), (623, 32454896), (712, 28398034), (1246, 16227448), (1424, 14199017), (2492, 8113724), (4984, 4056862), (9968, 2028431)]