81286370

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:168

約数の個数: 96

約数和(自身を含む): 177759360

約数和(自身を除く): 96472990

約数列:

[1, 2, 5, 10, 11, 19, 22, 23, 38, 46, 55, 89, 95, 110, 115, 178, 190, 209, 230, 253, 361, 418, 437, 445, 506, 722, 874, 890, 979, 1045, 1265, 1691, 1805, 1958, 2047, 2090, 2185, 2530, 3382, 3610, 3971, 4094, 4370, 4807, 4895, 7942, 8303, 8455, 9614, 9790, 10235, 16606, 16910, 18601, 19855, 20470, 22517, 24035, 32129, 37202, 38893, 39710, 41515, 45034, 48070, 64258, 77786, 83030, 91333, 93005, 112585, 160645, 182666, 186010, 194465, 225170, 321290, 353419, 388930, 427823, 456665, 706838, 738967, 855646, 913330, 1477934, 1767095, 2139115, 3534190, 3694835, 4278230, 7389670, 8128637, 16257274, 40643185, 81286370]

約数ペア:

[(1, 81286370), (2, 40643185), (5, 16257274), (10, 8128637), (11, 7389670), (19, 4278230), (22, 3694835), (23, 3534190), (38, 2139115), (46, 1767095), (55, 1477934), (89, 913330), (95, 855646), (110, 738967), (115, 706838), (178, 456665), (190, 427823), (209, 388930), (230, 353419), (253, 321290), (361, 225170), (418, 194465), (437, 186010), (445, 182666), (506, 160645), (722, 112585), (874, 93005), (890, 91333), (979, 83030), (1045, 77786), (1265, 64258), (1691, 48070), (1805, 45034), (1958, 41515), (2047, 39710), (2090, 38893), (2185, 37202), (2530, 32129), (3382, 24035), (3610, 22517), (3971, 20470), (4094, 19855), (4370, 18601), (4807, 16910), (4895, 16606), (7942, 10235), (8303, 9790), (8455, 9614)]