131465320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{3697}}^1$

素因数の和:3842

約数の個数: 64

約数和(自身を含む): 340807680

約数和(自身を除く): 209342360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 127, 140, 254, 280, 508, 635, 889, 1016, 1270, 1778, 2540, 3556, 3697, 4445, 5080, 7112, 7394, 8890, 14788, 17780, 18485, 25879, 29576, 35560, 36970, 51758, 73940, 103516, 129395, 147880, 207032, 258790, 469519, 517580, 939038, 1035160, 1878076, 2347595, 3286633, 3756152, 4695190, 6573266, 9390380, 13146532, 16433165, 18780760, 26293064, 32866330, 65732660, 131465320]

約数ペア:

[(1, 131465320), (2, 65732660), (4, 32866330), (5, 26293064), (7, 18780760), (8, 16433165), (10, 13146532), (14, 9390380), (20, 6573266), (28, 4695190), (35, 3756152), (40, 3286633), (56, 2347595), (70, 1878076), (127, 1035160), (140, 939038), (254, 517580), (280, 469519), (508, 258790), (635, 207032), (889, 147880), (1016, 129395), (1270, 103516), (1778, 73940), (2540, 51758), (3556, 36970), (3697, 35560), (4445, 29576), (5080, 25879), (7112, 18485), (7394, 17780), (8890, 14788)]