81355144

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{359}}^1\times {\mathrm{2179}}^1$

素因数の和:2557

約数の個数: 32

約数和(自身を含む): 164808000

約数和(自身を除く): 83452856

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 359, 718, 1436, 2179, 2872, 4358, 4667, 8716, 9334, 17432, 18668, 28327, 37336, 56654, 113308, 226616, 782261, 1564522, 3129044, 6258088, 10169393, 20338786, 40677572, 81355144]

約数ペア:

[(1, 81355144), (2, 40677572), (4, 20338786), (8, 10169393), (13, 6258088), (26, 3129044), (52, 1564522), (104, 782261), (359, 226616), (718, 113308), (1436, 56654), (2179, 37336), (2872, 28327), (4358, 18668), (4667, 17432), (8716, 9334)]