19869560

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1567}}^1$

素因数の和:1895

約数の個数: 32

約数和(自身を含む): 44876160

約数和(自身を除く): 25006600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1567, 1585, 2536, 3134, 3170, 6268, 6340, 7835, 12536, 12680, 15670, 31340, 62680, 496739, 993478, 1986956, 2483695, 3973912, 4967390, 9934780, 19869560]

約数ペア:

[(1, 19869560), (2, 9934780), (4, 4967390), (5, 3973912), (8, 2483695), (10, 1986956), (20, 993478), (40, 496739), (317, 62680), (634, 31340), (1268, 15670), (1567, 12680), (1585, 12536), (2536, 7835), (3134, 6340), (3170, 6268)]