638605552

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1283}}^1\times {\mathrm{2393}}^1$

素因数の和:3697

約数の個数: 40

約数和(自身を含む): 1334070864

約数和(自身を除く): 695465312

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1283, 2393, 2566, 4786, 5132, 9572, 10264, 16679, 19144, 20528, 31109, 33358, 38288, 62218, 66716, 124436, 133432, 248872, 266864, 497744, 3070219, 6140438, 12280876, 24561752, 39912847, 49123504, 79825694, 159651388, 319302776, 638605552]

約数ペア:

[(1, 638605552), (2, 319302776), (4, 159651388), (8, 79825694), (13, 49123504), (16, 39912847), (26, 24561752), (52, 12280876), (104, 6140438), (208, 3070219), (1283, 497744), (2393, 266864), (2566, 248872), (4786, 133432), (5132, 124436), (9572, 66716), (10264, 62218), (16679, 38288), (19144, 33358), (20528, 31109)]