800218820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{48973}}^1$

素因数の和:49044

約数の個数: 48

約数和(自身を含む): 1810079040

約数和(自身を除く): 1009860220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 172, 190, 215, 380, 430, 817, 860, 1634, 3268, 4085, 8170, 16340, 48973, 97946, 195892, 244865, 489730, 930487, 979460, 1860974, 2105839, 3721948, 4211678, 4652435, 8423356, 9304870, 10529195, 18609740, 21058390, 40010941, 42116780, 80021882, 160043764, 200054705, 400109410, 800218820]

約数ペア:

[(1, 800218820), (2, 400109410), (4, 200054705), (5, 160043764), (10, 80021882), (19, 42116780), (20, 40010941), (38, 21058390), (43, 18609740), (76, 10529195), (86, 9304870), (95, 8423356), (172, 4652435), (190, 4211678), (215, 3721948), (380, 2105839), (430, 1860974), (817, 979460), (860, 930487), (1634, 489730), (3268, 244865), (4085, 195892), (8170, 97946), (16340, 48973)]