21987331360

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{467}}^1$

素因数の和:723

約数の個数: 192

約数和(自身を含む): 54981763200

約数和(自身を除く): 32994431840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 73, 80, 116, 139, 145, 146, 160, 232, 278, 290, 292, 365, 464, 467, 556, 580, 584, 695, 730, 928, 934, 1112, 1160, 1168, 1390, 1460, 1868, 2117, 2224, 2320, 2335, 2336, 2780, 2920, 3736, 4031, 4234, 4448, 4640, 4670, 5560, 5840, 7472, 8062, 8468, 9340, 10147, 10585, 11120, 11680, 13543, 14944, 16124, 16936, 18680, 20155, 20294, 21170, 22240, 27086, 32248, 33872, 34091, 37360, 40310, 40588, 42340, 50735, 54172, 64496, 64913, 67715, 67744, 68182, 74720, 80620, 81176, 84680, 101470, 108344, 128992, 129826, 135430, 136364, 161240, 162352, 169360, 170455, 202940, 216688, 259652, 270860, 272728, 294263, 322480, 324565, 324704, 338720, 340910, 405880, 433376, 519304, 541720, 545456, 588526, 644960, 649130, 681820, 811760, 988639, 1038608, 1083440, 1090912, 1177052, 1298260, 1363640, 1471315, 1623520, 1882477, 1977278, 2077216, 2166880, 2354104, 2596520, 2727280, 2942630, 3764954, 3954556, 4708208, 4738649, 4943195, 5193040, 5454560, 5885260, 7529908, 7909112, 9412385, 9416416, 9477298, 9886390, 10386080, 11770520, 15059816, 15818224, 18824770, 18954596, 19772780, 23541040, 23693245, 30119632, 31636448, 37649540, 37909192, 39545560, 47082080, 47386490, 60239264, 75299080, 75818384, 79091120, 94772980, 137420821, 150598160, 151636768, 158182240, 189545960, 274841642, 301196320, 379091920, 549683284, 687104105, 758183840, 1099366568, 1374208210, 2198733136, 2748416420, 4397466272, 5496832840, 10993665680, 21987331360]

約数ペア:

[(1, 21987331360), (2, 10993665680), (4, 5496832840), (5, 4397466272), (8, 2748416420), (10, 2198733136), (16, 1374208210), (20, 1099366568), (29, 758183840), (32, 687104105), (40, 549683284), (58, 379091920), (73, 301196320), (80, 274841642), (116, 189545960), (139, 158182240), (145, 151636768), (146, 150598160), (160, 137420821), (232, 94772980), (278, 79091120), (290, 75818384), (292, 75299080), (365, 60239264), (464, 47386490), (467, 47082080), (556, 39545560), (580, 37909192), (584, 37649540), (695, 31636448), (730, 30119632), (928, 23693245), (934, 23541040), (1112, 19772780), (1160, 18954596), (1168, 18824770), (1390, 15818224), (1460, 15059816), (1868, 11770520), (2117, 10386080), (2224, 9886390), (2320, 9477298), (2335, 9416416), (2336, 9412385), (2780, 7909112), (2920, 7529908), (3736, 5885260), (4031, 5454560), (4234, 5193040), (4448, 4943195), (4640, 4738649), (4670, 4708208), (5560, 3954556), (5840, 3764954), (7472, 2942630), (8062, 2727280), (8468, 2596520), (9340, 2354104), (10147, 2166880), (10585, 2077216), (11120, 1977278), (11680, 1882477), (13543, 1623520), (14944, 1471315), (16124, 1363640), (16936, 1298260), (18680, 1177052), (20155, 1090912), (20294, 1083440), (21170, 1038608), (22240, 988639), (27086, 811760), (32248, 681820), (33872, 649130), (34091, 644960), (37360, 588526), (40310, 545456), (40588, 541720), (42340, 519304), (50735, 433376), (54172, 405880), (64496, 340910), (64913, 338720), (67715, 324704), (67744, 324565), (68182, 322480), (74720, 294263), (80620, 272728), (81176, 270860), (84680, 259652), (101470, 216688), (108344, 202940), (128992, 170455), (129826, 169360), (135430, 162352), (136364, 161240)]