25191880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{12853}}^1$

素因数の和:12878

約数の個数: 48

約数和(自身を含む): 65941020

約数和(自身を除く): 40749140

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 12853, 25706, 51412, 64265, 89971, 102824, 128530, 179942, 257060, 359884, 449855, 514120, 629797, 719768, 899710, 1259594, 1799420, 2519188, 3148985, 3598840, 5038376, 6297970, 12595940, 25191880]

約数ペア:

[(1, 25191880), (2, 12595940), (4, 6297970), (5, 5038376), (7, 3598840), (8, 3148985), (10, 2519188), (14, 1799420), (20, 1259594), (28, 899710), (35, 719768), (40, 629797), (49, 514120), (56, 449855), (70, 359884), (98, 257060), (140, 179942), (196, 128530), (245, 102824), (280, 89971), (392, 64265), (490, 51412), (980, 25706), (1960, 12853)]