28390830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72797}}^1$

素因数の和:72820

約数の個数: 32

約数和(自身を含む): 73380384

約数和(自身を除く): 44989554

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 72797, 145594, 218391, 363985, 436782, 727970, 946361, 1091955, 1892722, 2183910, 2839083, 4731805, 5678166, 9463610, 14195415, 28390830]

約数ペア:

[(1, 28390830), (2, 14195415), (3, 9463610), (5, 5678166), (6, 4731805), (10, 2839083), (13, 2183910), (15, 1892722), (26, 1091955), (30, 946361), (39, 727970), (65, 436782), (78, 363985), (130, 218391), (195, 145594), (390, 72797)]