18656640

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:145

約数の個数: 192

約数和(自身を含む): 66830400

約数和(自身を除く): 48173760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 41, 45, 48, 60, 64, 72, 79, 80, 82, 90, 96, 120, 123, 128, 144, 158, 160, 164, 180, 192, 205, 237, 240, 246, 288, 316, 320, 328, 360, 369, 384, 395, 410, 474, 480, 492, 576, 615, 632, 640, 656, 711, 720, 738, 790, 820, 948, 960, 984, 1152, 1185, 1230, 1264, 1312, 1422, 1440, 1476, 1580, 1640, 1845, 1896, 1920, 1968, 2370, 2460, 2528, 2624, 2844, 2880, 2952, 3160, 3239, 3280, 3555, 3690, 3792, 3936, 4740, 4920, 5056, 5248, 5688, 5760, 5904, 6320, 6478, 6560, 7110, 7380, 7584, 7872, 9480, 9717, 9840, 10112, 11376, 11808, 12640, 12956, 13120, 14220, 14760, 15168, 15744, 16195, 18960, 19434, 19680, 22752, 23616, 25280, 25912, 26240, 28440, 29151, 29520, 30336, 32390, 37920, 38868, 39360, 45504, 47232, 48585, 50560, 51824, 56880, 58302, 59040, 64780, 75840, 77736, 78720, 91008, 97170, 103648, 113760, 116604, 118080, 129560, 145755, 151680, 155472, 194340, 207296, 227520, 233208, 236160, 259120, 291510, 310944, 388680, 414592, 455040, 466416, 518240, 583020, 621888, 777360, 932832, 1036480, 1166040, 1243776, 1554720, 1865664, 2072960, 2332080, 3109440, 3731328, 4664160, 6218880, 9328320, 18656640]

約数ペア:

[(1, 18656640), (2, 9328320), (3, 6218880), (4, 4664160), (5, 3731328), (6, 3109440), (8, 2332080), (9, 2072960), (10, 1865664), (12, 1554720), (15, 1243776), (16, 1166040), (18, 1036480), (20, 932832), (24, 777360), (30, 621888), (32, 583020), (36, 518240), (40, 466416), (41, 455040), (45, 414592), (48, 388680), (60, 310944), (64, 291510), (72, 259120), (79, 236160), (80, 233208), (82, 227520), (90, 207296), (96, 194340), (120, 155472), (123, 151680), (128, 145755), (144, 129560), (158, 118080), (160, 116604), (164, 113760), (180, 103648), (192, 97170), (205, 91008), (237, 78720), (240, 77736), (246, 75840), (288, 64780), (316, 59040), (320, 58302), (328, 56880), (360, 51824), (369, 50560), (384, 48585), (395, 47232), (410, 45504), (474, 39360), (480, 38868), (492, 37920), (576, 32390), (615, 30336), (632, 29520), (640, 29151), (656, 28440), (711, 26240), (720, 25912), (738, 25280), (790, 23616), (820, 22752), (948, 19680), (960, 19434), (984, 18960), (1152, 16195), (1185, 15744), (1230, 15168), (1264, 14760), (1312, 14220), (1422, 13120), (1440, 12956), (1476, 12640), (1580, 11808), (1640, 11376), (1845, 10112), (1896, 9840), (1920, 9717), (1968, 9480), (2370, 7872), (2460, 7584), (2528, 7380), (2624, 7110), (2844, 6560), (2880, 6478), (2952, 6320), (3160, 5904), (3239, 5760), (3280, 5688), (3555, 5248), (3690, 5056), (3792, 4920), (3936, 4740)]