19685680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{35153}}^1$

素因数の和:35173

約数の個数: 40

約数和(自身を含む): 52309152

約数和(自身を除く): 32623472

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 35153, 70306, 140612, 175765, 246071, 281224, 351530, 492142, 562448, 703060, 984284, 1230355, 1406120, 1968568, 2460710, 2812240, 3937136, 4921420, 9842840, 19685680]

約数ペア:

[(1, 19685680), (2, 9842840), (4, 4921420), (5, 3937136), (7, 2812240), (8, 2460710), (10, 1968568), (14, 1406120), (16, 1230355), (20, 984284), (28, 703060), (35, 562448), (40, 492142), (56, 351530), (70, 281224), (80, 246071), (112, 175765), (140, 140612), (280, 70306), (560, 35153)]