19530720

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1$

素因数の和:175

約数の個数: 240

約数和(自身を含む): 75742128

約数和(自身を除く): 56211408

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 27, 30, 32, 33, 36, 40, 44, 45, 48, 54, 55, 60, 66, 72, 80, 81, 88, 90, 96, 99, 108, 110, 120, 132, 135, 137, 144, 160, 162, 165, 176, 180, 198, 216, 220, 240, 264, 270, 274, 288, 297, 324, 330, 352, 360, 396, 405, 411, 432, 440, 480, 495, 528, 540, 548, 594, 648, 660, 685, 720, 792, 810, 822, 864, 880, 891, 990, 1056, 1080, 1096, 1188, 1233, 1296, 1320, 1370, 1440, 1485, 1507, 1584, 1620, 1644, 1760, 1782, 1980, 2055, 2160, 2192, 2376, 2466, 2592, 2640, 2740, 2970, 3014, 3168, 3240, 3288, 3564, 3699, 3960, 4110, 4320, 4384, 4455, 4521, 4752, 4932, 5280, 5480, 5940, 6028, 6165, 6480, 6576, 7128, 7398, 7535, 7920, 8220, 8910, 9042, 9504, 9864, 10960, 11097, 11880, 12056, 12330, 12960, 13152, 13563, 14256, 14796, 15070, 15840, 16440, 17820, 18084, 18495, 19728, 21920, 22194, 22605, 23760, 24112, 24660, 27126, 28512, 29592, 30140, 32880, 35640, 36168, 36990, 39456, 40689, 44388, 45210, 47520, 48224, 49320, 54252, 55485, 59184, 60280, 65760, 67815, 71280, 72336, 73980, 81378, 88776, 90420, 98640, 108504, 110970, 118368, 120560, 122067, 135630, 142560, 144672, 147960, 162756, 177552, 180840, 197280, 203445, 217008, 221940, 241120, 244134, 271260, 295920, 325512, 355104, 361680, 406890, 434016, 443880, 488268, 542520, 591840, 610335, 651024, 723360, 813780, 887760, 976536, 1085040, 1220670, 1302048, 1627560, 1775520, 1953072, 2170080, 2441340, 3255120, 3906144, 4882680, 6510240, 9765360, 19530720]

約数ペア:

[(1, 19530720), (2, 9765360), (3, 6510240), (4, 4882680), (5, 3906144), (6, 3255120), (8, 2441340), (9, 2170080), (10, 1953072), (11, 1775520), (12, 1627560), (15, 1302048), (16, 1220670), (18, 1085040), (20, 976536), (22, 887760), (24, 813780), (27, 723360), (30, 651024), (32, 610335), (33, 591840), (36, 542520), (40, 488268), (44, 443880), (45, 434016), (48, 406890), (54, 361680), (55, 355104), (60, 325512), (66, 295920), (72, 271260), (80, 244134), (81, 241120), (88, 221940), (90, 217008), (96, 203445), (99, 197280), (108, 180840), (110, 177552), (120, 162756), (132, 147960), (135, 144672), (137, 142560), (144, 135630), (160, 122067), (162, 120560), (165, 118368), (176, 110970), (180, 108504), (198, 98640), (216, 90420), (220, 88776), (240, 81378), (264, 73980), (270, 72336), (274, 71280), (288, 67815), (297, 65760), (324, 60280), (330, 59184), (352, 55485), (360, 54252), (396, 49320), (405, 48224), (411, 47520), (432, 45210), (440, 44388), (480, 40689), (495, 39456), (528, 36990), (540, 36168), (548, 35640), (594, 32880), (648, 30140), (660, 29592), (685, 28512), (720, 27126), (792, 24660), (810, 24112), (822, 23760), (864, 22605), (880, 22194), (891, 21920), (990, 19728), (1056, 18495), (1080, 18084), (1096, 17820), (1188, 16440), (1233, 15840), (1296, 15070), (1320, 14796), (1370, 14256), (1440, 13563), (1485, 13152), (1507, 12960), (1584, 12330), (1620, 12056), (1644, 11880), (1760, 11097), (1782, 10960), (1980, 9864), (2055, 9504), (2160, 9042), (2192, 8910), (2376, 8220), (2466, 7920), (2592, 7535), (2640, 7398), (2740, 7128), (2970, 6576), (3014, 6480), (3168, 6165), (3240, 6028), (3288, 5940), (3564, 5480), (3699, 5280), (3960, 4932), (4110, 4752), (4320, 4521), (4384, 4455)]