81570214

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{197}}^1$

素因数の和:309

約数の個数: 48

約数和(自身を含む): 142203600

約数和(自身を除く): 60633386

約数列:

[1, 2, 11, 22, 29, 58, 59, 118, 121, 197, 242, 319, 394, 638, 649, 1298, 1711, 2167, 3422, 3509, 4334, 5713, 7018, 7139, 11426, 11623, 14278, 18821, 23246, 23837, 37642, 47674, 62843, 125686, 127853, 207031, 255706, 337067, 414062, 674134, 691273, 1382546, 1406383, 2812766, 3707737, 7415474, 40785107, 81570214]

約数ペア:

[(1, 81570214), (2, 40785107), (11, 7415474), (22, 3707737), (29, 2812766), (58, 1406383), (59, 1382546), (118, 691273), (121, 674134), (197, 414062), (242, 337067), (319, 255706), (394, 207031), (638, 127853), (649, 125686), (1298, 62843), (1711, 47674), (2167, 37642), (3422, 23837), (3509, 23246), (4334, 18821), (5713, 14278), (7018, 11623), (7139, 11426)]