1990700278

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{199429}}^1$

素因数の和:199492

約数の個数: 32

約数和(自身を含む): 3675893760

約数和(自身を除く): 1685193482

約数列:

[1, 2, 7, 14, 23, 31, 46, 62, 161, 217, 322, 434, 713, 1426, 4991, 9982, 199429, 398858, 1396003, 2792006, 4586867, 6182299, 9173734, 12364598, 32108069, 43276093, 64216138, 86552186, 142192877, 284385754, 995350139, 1990700278]

約数ペア:

[(1, 1990700278), (2, 995350139), (7, 284385754), (14, 142192877), (23, 86552186), (31, 64216138), (46, 43276093), (62, 32108069), (161, 12364598), (217, 9173734), (322, 6182299), (434, 4586867), (713, 2792006), (1426, 1396003), (4991, 398858), (9982, 199429)]