28519660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{479}}^1$

素因数の和:730

約数の個数: 48

約数和(自身を含む): 64915200

約数和(自身を除く): 36395540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 229, 260, 458, 479, 916, 958, 1145, 1916, 2290, 2395, 2977, 4580, 4790, 5954, 6227, 9580, 11908, 12454, 14885, 24908, 29770, 31135, 59540, 62270, 109691, 124540, 219382, 438764, 548455, 1096910, 1425983, 2193820, 2851966, 5703932, 7129915, 14259830, 28519660]

約数ペア:

[(1, 28519660), (2, 14259830), (4, 7129915), (5, 5703932), (10, 2851966), (13, 2193820), (20, 1425983), (26, 1096910), (52, 548455), (65, 438764), (130, 219382), (229, 124540), (260, 109691), (458, 62270), (479, 59540), (916, 31135), (958, 29770), (1145, 24908), (1916, 14885), (2290, 12454), (2395, 11908), (2977, 9580), (4580, 6227), (4790, 5954)]