19561120

素因数分解:

$2^5\times 5^1\times {\mathrm{179}}^1\times {\mathrm{683}}^1$

素因数の和:877

約数の個数: 48

約数和(自身を含む): 46539360

約数和(自身を除く): 26978240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 179, 358, 683, 716, 895, 1366, 1432, 1790, 2732, 2864, 3415, 3580, 5464, 5728, 6830, 7160, 10928, 13660, 14320, 21856, 27320, 28640, 54640, 109280, 122257, 244514, 489028, 611285, 978056, 1222570, 1956112, 2445140, 3912224, 4890280, 9780560, 19561120]

約数ペア:

[(1, 19561120), (2, 9780560), (4, 4890280), (5, 3912224), (8, 2445140), (10, 1956112), (16, 1222570), (20, 978056), (32, 611285), (40, 489028), (80, 244514), (160, 122257), (179, 109280), (358, 54640), (683, 28640), (716, 27320), (895, 21856), (1366, 14320), (1432, 13660), (1790, 10928), (2732, 7160), (2864, 6830), (3415, 5728), (3580, 5464)]