28171120

素因数分解:

$2^4\times 5^1\times {\mathrm{397}}^1\times {\mathrm{887}}^1$

素因数の和:1297

約数の個数: 40

約数和(自身を含む): 65736864

約数和(自身を除く): 37565744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397, 794, 887, 1588, 1774, 1985, 3176, 3548, 3970, 4435, 6352, 7096, 7940, 8870, 14192, 15880, 17740, 31760, 35480, 70960, 352139, 704278, 1408556, 1760695, 2817112, 3521390, 5634224, 7042780, 14085560, 28171120]

約数ペア:

[(1, 28171120), (2, 14085560), (4, 7042780), (5, 5634224), (8, 3521390), (10, 2817112), (16, 1760695), (20, 1408556), (40, 704278), (80, 352139), (397, 70960), (794, 35480), (887, 31760), (1588, 17740), (1774, 15880), (1985, 14192), (3176, 8870), (3548, 7940), (3970, 7096), (4435, 6352)]