19558420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139703}}^1$

素因数の和:139719

約数の個数: 24

約数和(自身を含む): 46940544

約数和(自身を除く): 27382124

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 139703, 279406, 558812, 698515, 977921, 1397030, 1955842, 2794060, 3911684, 4889605, 9779210, 19558420]

約数ペア:

[(1, 19558420), (2, 9779210), (4, 4889605), (5, 3911684), (7, 2794060), (10, 1955842), (14, 1397030), (20, 977921), (28, 698515), (35, 558812), (70, 279406), (140, 139703)]