19815320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{70769}}^1$

素因数の和:70787

約数の個数: 32

約数和(自身を含む): 50954400

約数和(自身を除く): 31139080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 70769, 141538, 283076, 353845, 495383, 566152, 707690, 990766, 1415380, 1981532, 2476915, 2830760, 3963064, 4953830, 9907660, 19815320]

約数ペア:

[(1, 19815320), (2, 9907660), (4, 4953830), (5, 3963064), (7, 2830760), (8, 2476915), (10, 1981532), (14, 1415380), (20, 990766), (28, 707690), (35, 566152), (40, 495383), (56, 353845), (70, 283076), (140, 141538), (280, 70769)]