25351820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{347}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 57703968

約数和(自身を除く): 32352148

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 281, 347, 562, 694, 1124, 1388, 1405, 1735, 2810, 3470, 3653, 4511, 5620, 6940, 7306, 9022, 14612, 18044, 18265, 22555, 36530, 45110, 73060, 90220, 97507, 195014, 390028, 487535, 975070, 1267591, 1950140, 2535182, 5070364, 6337955, 12675910, 25351820]

約数ペア:

[(1, 25351820), (2, 12675910), (4, 6337955), (5, 5070364), (10, 2535182), (13, 1950140), (20, 1267591), (26, 975070), (52, 487535), (65, 390028), (130, 195014), (260, 97507), (281, 90220), (347, 73060), (562, 45110), (694, 36530), (1124, 22555), (1388, 18265), (1405, 18044), (1735, 14612), (2810, 9022), (3470, 7306), (3653, 6940), (4511, 5620)]