131389775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^2\times {\mathrm{349}}^1$

素因数の和:444

約数の個数: 36

約数和(自身を含む): 183191400

約数和(自身を除く): 51801625

約数列:

[1, 5, 11, 25, 37, 55, 185, 275, 349, 407, 925, 1369, 1745, 2035, 3839, 6845, 8725, 10175, 12913, 15059, 19195, 34225, 64565, 75295, 95975, 142043, 322825, 376475, 477781, 710215, 2388905, 3551075, 5255591, 11944525, 26277955, 131389775]

約数ペア:

[(1, 131389775), (5, 26277955), (11, 11944525), (25, 5255591), (37, 3551075), (55, 2388905), (185, 710215), (275, 477781), (349, 376475), (407, 322825), (925, 142043), (1369, 95975), (1745, 75295), (2035, 64565), (3839, 34225), (6845, 19195), (8725, 15059), (10175, 12913)]