81331352

素因数分解:

$2^3\times {\mathrm{31}}^2\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 160866000

約数和(自身を除く): 79534648

約数列:

[1, 2, 4, 8, 31, 62, 71, 124, 142, 149, 248, 284, 298, 568, 596, 961, 1192, 1922, 2201, 3844, 4402, 4619, 7688, 8804, 9238, 10579, 17608, 18476, 21158, 36952, 42316, 68231, 84632, 136462, 143189, 272924, 286378, 327949, 545848, 572756, 655898, 1145512, 1311796, 2623592, 10166419, 20332838, 40665676, 81331352]

約数ペア:

[(1, 81331352), (2, 40665676), (4, 20332838), (8, 10166419), (31, 2623592), (62, 1311796), (71, 1145512), (124, 655898), (142, 572756), (149, 545848), (248, 327949), (284, 286378), (298, 272924), (568, 143189), (596, 136462), (961, 84632), (1192, 68231), (1922, 42316), (2201, 36952), (3844, 21158), (4402, 18476), (4619, 17608), (7688, 10579), (8804, 9238)]