28654220

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{4177}}^1$

素因数の和:4207

約数の個数: 48

約数和(自身を含む): 70190400

約数和(自身を除く): 41536180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 4177, 6860, 8354, 16708, 20885, 29239, 41770, 58478, 83540, 116956, 146195, 204673, 292390, 409346, 584780, 818692, 1023365, 1432711, 2046730, 2865422, 4093460, 5730844, 7163555, 14327110, 28654220]

約数ペア:

[(1, 28654220), (2, 14327110), (4, 7163555), (5, 5730844), (7, 4093460), (10, 2865422), (14, 2046730), (20, 1432711), (28, 1023365), (35, 818692), (49, 584780), (70, 409346), (98, 292390), (140, 204673), (196, 146195), (245, 116956), (343, 83540), (490, 58478), (686, 41770), (980, 29239), (1372, 20885), (1715, 16708), (3430, 8354), (4177, 6860)]