121915920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^3\times {\mathrm{1481}}^1$

素因数の和:1518

約数の個数: 160

約数和(自身を含む): 441043200

約数和(自身を除く): 319127280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 140, 147, 168, 196, 210, 240, 245, 280, 294, 336, 343, 392, 420, 490, 560, 588, 686, 735, 784, 840, 980, 1029, 1176, 1372, 1470, 1481, 1680, 1715, 1960, 2058, 2352, 2744, 2940, 2962, 3430, 3920, 4116, 4443, 5145, 5488, 5880, 5924, 6860, 7405, 8232, 8886, 10290, 10367, 11760, 11848, 13720, 14810, 16464, 17772, 20580, 20734, 22215, 23696, 27440, 29620, 31101, 35544, 41160, 41468, 44430, 51835, 59240, 62202, 71088, 72569, 82320, 82936, 88860, 103670, 118480, 124404, 145138, 155505, 165872, 177720, 207340, 217707, 248808, 290276, 311010, 355440, 362845, 414680, 435414, 497616, 507983, 580552, 622020, 725690, 829360, 870828, 1015966, 1088535, 1161104, 1244040, 1451380, 1523949, 1741656, 2031932, 2177070, 2488080, 2539915, 2902760, 3047898, 3483312, 4063864, 4354140, 5079830, 5805520, 6095796, 7619745, 8127728, 8708280, 10159660, 12191592, 15239490, 17416560, 20319320, 24383184, 30478980, 40638640, 60957960, 121915920]

約数ペア:

[(1, 121915920), (2, 60957960), (3, 40638640), (4, 30478980), (5, 24383184), (6, 20319320), (7, 17416560), (8, 15239490), (10, 12191592), (12, 10159660), (14, 8708280), (15, 8127728), (16, 7619745), (20, 6095796), (21, 5805520), (24, 5079830), (28, 4354140), (30, 4063864), (35, 3483312), (40, 3047898), (42, 2902760), (48, 2539915), (49, 2488080), (56, 2177070), (60, 2031932), (70, 1741656), (80, 1523949), (84, 1451380), (98, 1244040), (105, 1161104), (112, 1088535), (120, 1015966), (140, 870828), (147, 829360), (168, 725690), (196, 622020), (210, 580552), (240, 507983), (245, 497616), (280, 435414), (294, 414680), (336, 362845), (343, 355440), (392, 311010), (420, 290276), (490, 248808), (560, 217707), (588, 207340), (686, 177720), (735, 165872), (784, 155505), (840, 145138), (980, 124404), (1029, 118480), (1176, 103670), (1372, 88860), (1470, 82936), (1481, 82320), (1680, 72569), (1715, 71088), (1960, 62202), (2058, 59240), (2352, 51835), (2744, 44430), (2940, 41468), (2962, 41160), (3430, 35544), (3920, 31101), (4116, 29620), (4443, 27440), (5145, 23696), (5488, 22215), (5880, 20734), (5924, 20580), (6860, 17772), (7405, 16464), (8232, 14810), (8886, 13720), (10290, 11848), (10367, 11760)]