81857430

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{397}}^1$

素因数の和:518

約数の個数: 96

約数和(自身を含む): 223516800

約数和(自身を除く): 141659370

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 29, 30, 45, 58, 79, 87, 90, 145, 158, 174, 237, 261, 290, 395, 397, 435, 474, 522, 711, 790, 794, 870, 1185, 1191, 1305, 1422, 1985, 2291, 2370, 2382, 2610, 3555, 3573, 3970, 4582, 5955, 6873, 7110, 7146, 11455, 11513, 11910, 13746, 17865, 20619, 22910, 23026, 31363, 34365, 34539, 35730, 41238, 57565, 62726, 68730, 69078, 94089, 103095, 103617, 115130, 156815, 172695, 188178, 206190, 207234, 282267, 313630, 345390, 470445, 518085, 564534, 909527, 940890, 1036170, 1411335, 1819054, 2728581, 2822670, 4547635, 5457162, 8185743, 9095270, 13642905, 16371486, 27285810, 40928715, 81857430]

約数ペア:

[(1, 81857430), (2, 40928715), (3, 27285810), (5, 16371486), (6, 13642905), (9, 9095270), (10, 8185743), (15, 5457162), (18, 4547635), (29, 2822670), (30, 2728581), (45, 1819054), (58, 1411335), (79, 1036170), (87, 940890), (90, 909527), (145, 564534), (158, 518085), (174, 470445), (237, 345390), (261, 313630), (290, 282267), (395, 207234), (397, 206190), (435, 188178), (474, 172695), (522, 156815), (711, 115130), (790, 103617), (794, 103095), (870, 94089), (1185, 69078), (1191, 68730), (1305, 62726), (1422, 57565), (1985, 41238), (2291, 35730), (2370, 34539), (2382, 34365), (2610, 31363), (3555, 23026), (3573, 22910), (3970, 20619), (4582, 17865), (5955, 13746), (6873, 11910), (7110, 11513), (7146, 11455)]