19491840

素因数分解:

$2^{10}\times 3^4\times 5^1\times {\mathrm{47}}^1$

素因数の和:84

約数の個数: 220

約数和(自身を含む): 71333856

約数和(自身を除く): 51842016

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 47, 48, 54, 60, 64, 72, 80, 81, 90, 94, 96, 108, 120, 128, 135, 141, 144, 160, 162, 180, 188, 192, 216, 235, 240, 256, 270, 282, 288, 320, 324, 360, 376, 384, 405, 423, 432, 470, 480, 512, 540, 564, 576, 640, 648, 705, 720, 752, 768, 810, 846, 864, 940, 960, 1024, 1080, 1128, 1152, 1269, 1280, 1296, 1410, 1440, 1504, 1536, 1620, 1692, 1728, 1880, 1920, 2115, 2160, 2256, 2304, 2538, 2560, 2592, 2820, 2880, 3008, 3072, 3240, 3384, 3456, 3760, 3807, 3840, 4230, 4320, 4512, 4608, 5076, 5120, 5184, 5640, 5760, 6016, 6345, 6480, 6768, 6912, 7520, 7614, 7680, 8460, 8640, 9024, 9216, 10152, 10368, 11280, 11520, 12032, 12690, 12960, 13536, 13824, 15040, 15228, 15360, 16920, 17280, 18048, 19035, 20304, 20736, 22560, 23040, 24064, 25380, 25920, 27072, 27648, 30080, 30456, 33840, 34560, 36096, 38070, 40608, 41472, 45120, 46080, 48128, 50760, 51840, 54144, 60160, 60912, 67680, 69120, 72192, 76140, 81216, 82944, 90240, 101520, 103680, 108288, 120320, 121824, 135360, 138240, 144384, 152280, 162432, 180480, 203040, 207360, 216576, 240640, 243648, 270720, 304560, 324864, 360960, 406080, 414720, 433152, 487296, 541440, 609120, 649728, 721920, 812160, 974592, 1082880, 1218240, 1299456, 1624320, 1949184, 2165760, 2436480, 3248640, 3898368, 4872960, 6497280, 9745920, 19491840]

約数ペア:

[(1, 19491840), (2, 9745920), (3, 6497280), (4, 4872960), (5, 3898368), (6, 3248640), (8, 2436480), (9, 2165760), (10, 1949184), (12, 1624320), (15, 1299456), (16, 1218240), (18, 1082880), (20, 974592), (24, 812160), (27, 721920), (30, 649728), (32, 609120), (36, 541440), (40, 487296), (45, 433152), (47, 414720), (48, 406080), (54, 360960), (60, 324864), (64, 304560), (72, 270720), (80, 243648), (81, 240640), (90, 216576), (94, 207360), (96, 203040), (108, 180480), (120, 162432), (128, 152280), (135, 144384), (141, 138240), (144, 135360), (160, 121824), (162, 120320), (180, 108288), (188, 103680), (192, 101520), (216, 90240), (235, 82944), (240, 81216), (256, 76140), (270, 72192), (282, 69120), (288, 67680), (320, 60912), (324, 60160), (360, 54144), (376, 51840), (384, 50760), (405, 48128), (423, 46080), (432, 45120), (470, 41472), (480, 40608), (512, 38070), (540, 36096), (564, 34560), (576, 33840), (640, 30456), (648, 30080), (705, 27648), (720, 27072), (752, 25920), (768, 25380), (810, 24064), (846, 23040), (864, 22560), (940, 20736), (960, 20304), (1024, 19035), (1080, 18048), (1128, 17280), (1152, 16920), (1269, 15360), (1280, 15228), (1296, 15040), (1410, 13824), (1440, 13536), (1504, 12960), (1536, 12690), (1620, 12032), (1692, 11520), (1728, 11280), (1880, 10368), (1920, 10152), (2115, 9216), (2160, 9024), (2256, 8640), (2304, 8460), (2538, 7680), (2560, 7614), (2592, 7520), (2820, 6912), (2880, 6768), (3008, 6480), (3072, 6345), (3240, 6016), (3384, 5760), (3456, 5640), (3760, 5184), (3807, 5120), (3840, 5076), (4230, 4608), (4320, 4512)]