18764640

素因数分解:

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

素因数の和:261

約数の個数: 144

約数和(自身を含む): 65218608

約数和(自身を除く): 46453968

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 83, 90, 96, 120, 144, 157, 160, 166, 180, 240, 249, 288, 314, 332, 360, 415, 471, 480, 498, 628, 664, 720, 747, 785, 830, 942, 996, 1245, 1256, 1328, 1413, 1440, 1494, 1570, 1660, 1884, 1992, 2355, 2490, 2512, 2656, 2826, 2988, 3140, 3320, 3735, 3768, 3984, 4710, 4980, 5024, 5652, 5976, 6280, 6640, 7065, 7470, 7536, 7968, 9420, 9960, 11304, 11952, 12560, 13031, 13280, 14130, 14940, 15072, 18840, 19920, 22608, 23904, 25120, 26062, 28260, 29880, 37680, 39093, 39840, 45216, 52124, 56520, 59760, 65155, 75360, 78186, 104248, 113040, 117279, 119520, 130310, 156372, 195465, 208496, 226080, 234558, 260620, 312744, 390930, 416992, 469116, 521240, 586395, 625488, 781860, 938232, 1042480, 1172790, 1250976, 1563720, 1876464, 2084960, 2345580, 3127440, 3752928, 4691160, 6254880, 9382320, 18764640]

約数ペア:

[(1, 18764640), (2, 9382320), (3, 6254880), (4, 4691160), (5, 3752928), (6, 3127440), (8, 2345580), (9, 2084960), (10, 1876464), (12, 1563720), (15, 1250976), (16, 1172790), (18, 1042480), (20, 938232), (24, 781860), (30, 625488), (32, 586395), (36, 521240), (40, 469116), (45, 416992), (48, 390930), (60, 312744), (72, 260620), (80, 234558), (83, 226080), (90, 208496), (96, 195465), (120, 156372), (144, 130310), (157, 119520), (160, 117279), (166, 113040), (180, 104248), (240, 78186), (249, 75360), (288, 65155), (314, 59760), (332, 56520), (360, 52124), (415, 45216), (471, 39840), (480, 39093), (498, 37680), (628, 29880), (664, 28260), (720, 26062), (747, 25120), (785, 23904), (830, 22608), (942, 19920), (996, 18840), (1245, 15072), (1256, 14940), (1328, 14130), (1413, 13280), (1440, 13031), (1494, 12560), (1570, 11952), (1660, 11304), (1884, 9960), (1992, 9420), (2355, 7968), (2490, 7536), (2512, 7470), (2656, 7065), (2826, 6640), (2988, 6280), (3140, 5976), (3320, 5652), (3735, 5024), (3768, 4980), (3984, 4710)]