392688940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{400703}}^1$

素因数の和:400726

約数の個数: 36

約数和(自身を含む): 959285376

約数和(自身を除く): 566596436

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 400703, 801406, 1602812, 2003515, 2804921, 4007030, 5609842, 8014060, 11219684, 14024605, 19634447, 28049210, 39268894, 56098420, 78537788, 98172235, 196344470, 392688940]

約数ペア:

[(1, 392688940), (2, 196344470), (4, 98172235), (5, 78537788), (7, 56098420), (10, 39268894), (14, 28049210), (20, 19634447), (28, 14024605), (35, 11219684), (49, 8014060), (70, 5609842), (98, 4007030), (140, 2804921), (196, 2003515), (245, 1602812), (490, 801406), (980, 400703)]