28399150

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43691}}^1$

素因数の和:43716

約数の個数: 24

約数和(自身を含む): 56886984

約数和(自身を除く): 28487834

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 43691, 87382, 218455, 436910, 567983, 1092275, 1135966, 2184550, 2839915, 5679830, 14199575, 28399150]

約数ペア:

[(1, 28399150), (2, 14199575), (5, 5679830), (10, 2839915), (13, 2184550), (25, 1135966), (26, 1092275), (50, 567983), (65, 436910), (130, 218455), (325, 87382), (650, 43691)]