19164880

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{4889}}^1$

素因数の和:4916

約数の個数: 60

約数和(自身を含む): 51843780

約数和(自身を除く): 32678900

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 4889, 9778, 19556, 24445, 34223, 39112, 48890, 68446, 78224, 97780, 136892, 171115, 195560, 239561, 273784, 342230, 391120, 479122, 547568, 684460, 958244, 1197805, 1368920, 1916488, 2395610, 2737840, 3832976, 4791220, 9582440, 19164880]

約数ペア:

[(1, 19164880), (2, 9582440), (4, 4791220), (5, 3832976), (7, 2737840), (8, 2395610), (10, 1916488), (14, 1368920), (16, 1197805), (20, 958244), (28, 684460), (35, 547568), (40, 479122), (49, 391120), (56, 342230), (70, 273784), (80, 239561), (98, 195560), (112, 171115), (140, 136892), (196, 97780), (245, 78224), (280, 68446), (392, 48890), (490, 39112), (560, 34223), (784, 24445), (980, 19556), (1960, 9778), (3920, 4889)]