25196780

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{3673}}^1$

素因数の和:3703

約数の個数: 48

約数和(自身を含む): 61723200

約数和(自身を除く): 36526420

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, 3673, 6860, 7346, 14692, 18365, 25711, 36730, 51422, 73460, 102844, 128555, 179977, 257110, 359954, 514220, 719908, 899885, 1259839, 1799770, 2519678, 3599540, 5039356, 6299195, 12598390, 25196780]

約数ペア:

[(1, 25196780), (2, 12598390), (4, 6299195), (5, 5039356), (7, 3599540), (10, 2519678), (14, 1799770), (20, 1259839), (28, 899885), (35, 719908), (49, 514220), (70, 359954), (98, 257110), (140, 179977), (196, 128555), (245, 102844), (343, 73460), (490, 51422), (686, 36730), (980, 25711), (1372, 18365), (1715, 14692), (3430, 7346), (3673, 6860)]