8638420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61703}}^1$

素因数の和:61719

約数の個数: 24

約数和(自身を含む): 20732544

約数和(自身を除く): 12094124

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 61703, 123406, 246812, 308515, 431921, 617030, 863842, 1234060, 1727684, 2159605, 4319210, 8638420]

約数ペア:

[(1, 8638420), (2, 4319210), (4, 2159605), (5, 1727684), (7, 1234060), (10, 863842), (14, 617030), (20, 431921), (28, 308515), (35, 246812), (70, 123406), (140, 61703)]