21771360

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1163}}^1$

素因数の和:1197

約数の個数: 144

約数和(自身を含む): 80078544

約数和(自身を除く): 58307184

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 180, 195, 208, 234, 240, 260, 288, 312, 360, 390, 416, 468, 480, 520, 585, 624, 720, 780, 936, 1040, 1163, 1170, 1248, 1440, 1560, 1872, 2080, 2326, 2340, 3120, 3489, 3744, 4652, 4680, 5815, 6240, 6978, 9304, 9360, 10467, 11630, 13956, 15119, 17445, 18608, 18720, 20934, 23260, 27912, 30238, 34890, 37216, 41868, 45357, 46520, 52335, 55824, 60476, 69780, 75595, 83736, 90714, 93040, 104670, 111648, 120952, 136071, 139560, 151190, 167472, 181428, 186080, 209340, 226785, 241904, 272142, 279120, 302380, 334944, 362856, 418680, 453570, 483808, 544284, 558240, 604760, 680355, 725712, 837360, 907140, 1088568, 1209520, 1360710, 1451424, 1674720, 1814280, 2177136, 2419040, 2721420, 3628560, 4354272, 5442840, 7257120, 10885680, 21771360]

約数ペア:

[(1, 21771360), (2, 10885680), (3, 7257120), (4, 5442840), (5, 4354272), (6, 3628560), (8, 2721420), (9, 2419040), (10, 2177136), (12, 1814280), (13, 1674720), (15, 1451424), (16, 1360710), (18, 1209520), (20, 1088568), (24, 907140), (26, 837360), (30, 725712), (32, 680355), (36, 604760), (39, 558240), (40, 544284), (45, 483808), (48, 453570), (52, 418680), (60, 362856), (65, 334944), (72, 302380), (78, 279120), (80, 272142), (90, 241904), (96, 226785), (104, 209340), (117, 186080), (120, 181428), (130, 167472), (144, 151190), (156, 139560), (160, 136071), (180, 120952), (195, 111648), (208, 104670), (234, 93040), (240, 90714), (260, 83736), (288, 75595), (312, 69780), (360, 60476), (390, 55824), (416, 52335), (468, 46520), (480, 45357), (520, 41868), (585, 37216), (624, 34890), (720, 30238), (780, 27912), (936, 23260), (1040, 20934), (1163, 18720), (1170, 18608), (1248, 17445), (1440, 15119), (1560, 13956), (1872, 11630), (2080, 10467), (2326, 9360), (2340, 9304), (3120, 6978), (3489, 6240), (3744, 5815), (4652, 4680)]