81313440

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:271

約数の個数: 192

約数和(自身を含む): 280941696

約数和(自身を除く): 199628256

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 65, 78, 80, 83, 96, 104, 120, 130, 156, 157, 160, 166, 195, 208, 240, 249, 260, 312, 314, 332, 390, 415, 416, 471, 480, 498, 520, 624, 628, 664, 780, 785, 830, 942, 996, 1040, 1079, 1245, 1248, 1256, 1328, 1560, 1570, 1660, 1884, 1992, 2041, 2080, 2158, 2355, 2490, 2512, 2656, 3120, 3140, 3237, 3320, 3768, 3984, 4082, 4316, 4710, 4980, 5024, 5395, 6123, 6240, 6280, 6474, 6640, 7536, 7968, 8164, 8632, 9420, 9960, 10205, 10790, 12246, 12560, 12948, 13031, 13280, 15072, 16185, 16328, 17264, 18840, 19920, 20410, 21580, 24492, 25120, 25896, 26062, 30615, 32370, 32656, 34528, 37680, 39093, 39840, 40820, 43160, 48984, 51792, 52124, 61230, 64740, 65155, 65312, 75360, 78186, 81640, 86320, 97968, 103584, 104248, 122460, 129480, 130310, 156372, 163280, 169403, 172640, 195465, 195936, 208496, 244920, 258960, 260620, 312744, 326560, 338806, 390930, 416992, 489840, 508209, 517920, 521240, 625488, 677612, 781860, 847015, 979680, 1016418, 1042480, 1250976, 1355224, 1563720, 1694030, 2032836, 2084960, 2541045, 2710448, 3127440, 3388060, 4065672, 5082090, 5420896, 6254880, 6776120, 8131344, 10164180, 13552240, 16262688, 20328360, 27104480, 40656720, 81313440]

約数ペア:

[(1, 81313440), (2, 40656720), (3, 27104480), (4, 20328360), (5, 16262688), (6, 13552240), (8, 10164180), (10, 8131344), (12, 6776120), (13, 6254880), (15, 5420896), (16, 5082090), (20, 4065672), (24, 3388060), (26, 3127440), (30, 2710448), (32, 2541045), (39, 2084960), (40, 2032836), (48, 1694030), (52, 1563720), (60, 1355224), (65, 1250976), (78, 1042480), (80, 1016418), (83, 979680), (96, 847015), (104, 781860), (120, 677612), (130, 625488), (156, 521240), (157, 517920), (160, 508209), (166, 489840), (195, 416992), (208, 390930), (240, 338806), (249, 326560), (260, 312744), (312, 260620), (314, 258960), (332, 244920), (390, 208496), (415, 195936), (416, 195465), (471, 172640), (480, 169403), (498, 163280), (520, 156372), (624, 130310), (628, 129480), (664, 122460), (780, 104248), (785, 103584), (830, 97968), (942, 86320), (996, 81640), (1040, 78186), (1079, 75360), (1245, 65312), (1248, 65155), (1256, 64740), (1328, 61230), (1560, 52124), (1570, 51792), (1660, 48984), (1884, 43160), (1992, 40820), (2041, 39840), (2080, 39093), (2158, 37680), (2355, 34528), (2490, 32656), (2512, 32370), (2656, 30615), (3120, 26062), (3140, 25896), (3237, 25120), (3320, 24492), (3768, 21580), (3984, 20410), (4082, 19920), (4316, 18840), (4710, 17264), (4980, 16328), (5024, 16185), (5395, 15072), (6123, 13280), (6240, 13031), (6280, 12948), (6474, 12560), (6640, 12246), (7536, 10790), (7968, 10205), (8164, 9960), (8632, 9420)]