389610260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{31883}}^1$

素因数の和:31952

約数の個数: 48

約数和(自身を含む): 899894016

約数和(自身を除く): 510283756

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 188, 235, 260, 470, 611, 940, 1222, 2444, 3055, 6110, 12220, 31883, 63766, 127532, 159415, 318830, 414479, 637660, 828958, 1498501, 1657916, 2072395, 2997002, 4144790, 5994004, 7492505, 8289580, 14985010, 19480513, 29970020, 38961026, 77922052, 97402565, 194805130, 389610260]

約数ペア:

[(1, 389610260), (2, 194805130), (4, 97402565), (5, 77922052), (10, 38961026), (13, 29970020), (20, 19480513), (26, 14985010), (47, 8289580), (52, 7492505), (65, 5994004), (94, 4144790), (130, 2997002), (188, 2072395), (235, 1657916), (260, 1498501), (470, 828958), (611, 637660), (940, 414479), (1222, 318830), (2444, 159415), (3055, 127532), (6110, 63766), (12220, 31883)]