21522777346980

素因数分解:

$2^2\times 3^4\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1153}}^1\times {\mathrm{18089}}^1$

素因数の和:19290

約数の個数: 720

約数和(自身を含む): 84660714174960

約数和(自身を除く): 63137936827980

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 27, 28, 30, 35, 36, 39, 42, 45, 49, 52, 54, 60, 63, 65, 70, 78, 81, 84, 90, 91, 98, 105, 108, 117, 126, 130, 135, 140, 147, 156, 162, 180, 182, 189, 195, 196, 210, 234, 245, 252, 260, 270, 273, 294, 315, 324, 351, 364, 378, 390, 405, 420, 441, 455, 468, 490, 540, 546, 567, 585, 588, 630, 637, 702, 735, 756, 780, 810, 819, 882, 910, 945, 980, 1053, 1092, 1134, 1153, 1170, 1260, 1274, 1323, 1365, 1404, 1470, 1620, 1638, 1755, 1764, 1820, 1890, 1911, 2106, 2205, 2268, 2306, 2340, 2457, 2548, 2646, 2730, 2835, 2940, 3185, 3276, 3459, 3510, 3780, 3822, 3969, 4095, 4212, 4410, 4612, 4914, 5265, 5292, 5460, 5670, 5733, 5765, 6370, 6615, 6918, 7020, 7371, 7644, 7938, 8071, 8190, 8820, 9555, 9828, 10377, 10530, 11340, 11466, 11530, 12285, 12740, 13230, 13836, 14742, 14989, 15876, 16142, 16380, 17199, 17295, 18089, 19110, 19845, 20754, 21060, 22932, 23060, 24213, 24570, 26460, 28665, 29484, 29978, 31131, 32284, 34398, 34590, 36178, 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約数ペア:

[(1, 21522777346980), (2, 10761388673490), (3, 7174259115660), (4, 5380694336745), (5, 4304555469396), (6, 3587129557830), (7, 3074682478140), (9, 2391419705220), (10, 2152277734698), (12, 1793564778915), (13, 1655598257460), (14, 1537341239070), (15, 1434851823132), (18, 1195709852610), (20, 1076138867349), (21, 1024894159380), (26, 827799128730), (27, 797139901740), (28, 768670619535), (30, 717425911566), (35, 614936495628), (36, 597854926305), (39, 551866085820), (42, 512447079690), (45, 478283941044), (49, 439240354020), (52, 413899564365), (54, 398569950870), (60, 358712955783), (63, 341631386460), (65, 331119651492), (70, 307468247814), (78, 275933042910), (81, 265713300580), (84, 256223539845), (90, 239141970522), (91, 236514036780), (98, 219620177010), (105, 204978831876), (108, 199284975435), (117, 183955361940), (126, 170815693230), (130, 165559825746), (135, 159427980348), (140, 153734123907), (147, 146413451340), (156, 137966521455), (162, 132856650290), (180, 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