247306540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{661}}^1\times {\mathrm{1439}}^1$

素因数の和:2122

約数の個数: 48

約数和(自身を含む): 560528640

約数和(自身を除く): 313222100

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 661, 1322, 1439, 2644, 2878, 3305, 5756, 6610, 7195, 8593, 13220, 14390, 17186, 18707, 28780, 34372, 37414, 42965, 74828, 85930, 93535, 171860, 187070, 374140, 951179, 1902358, 3804716, 4755895, 9511790, 12365327, 19023580, 24730654, 49461308, 61826635, 123653270, 247306540]

約数ペア:

[(1, 247306540), (2, 123653270), (4, 61826635), (5, 49461308), (10, 24730654), (13, 19023580), (20, 12365327), (26, 9511790), (52, 4755895), (65, 3804716), (130, 1902358), (260, 951179), (661, 374140), (1322, 187070), (1439, 171860), (2644, 93535), (2878, 85930), (3305, 74828), (5756, 42965), (6610, 37414), (7195, 34372), (8593, 28780), (13220, 18707), (14390, 17186)]