21323463680

素因数分解:

$2^{10}\times 5^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{647}}^1$

素因数の和:870

約数の個数: 176

約数和(自身を含む): 52814172096

約数和(自身を除く): 31490708416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 157, 160, 164, 205, 256, 314, 320, 328, 410, 512, 628, 640, 647, 656, 785, 820, 1024, 1256, 1280, 1294, 1312, 1570, 1640, 2512, 2560, 2588, 2624, 3140, 3235, 3280, 5024, 5120, 5176, 5248, 6280, 6437, 6470, 6560, 10048, 10352, 10496, 12560, 12874, 12940, 13120, 20096, 20704, 20992, 25120, 25748, 25880, 26240, 26527, 32185, 40192, 41408, 41984, 50240, 51496, 51760, 52480, 53054, 64370, 80384, 82816, 100480, 101579, 102992, 103520, 104960, 106108, 128740, 132635, 160768, 165632, 200960, 203158, 205984, 207040, 209920, 212216, 257480, 265270, 331264, 401920, 406316, 411968, 414080, 424432, 507895, 514960, 530540, 662528, 803840, 812632, 823936, 828160, 848864, 1015790, 1029920, 1061080, 1625264, 1647872, 1656320, 1697728, 2031580, 2059840, 2122160, 3250528, 3295744, 3312640, 3395456, 4063160, 4119680, 4164739, 4244320, 6501056, 6591488, 6790912, 8126320, 8239360, 8329478, 8488640, 13002112, 13581824, 16252640, 16478720, 16658956, 16977280, 20823695, 26004224, 27163648, 32505280, 32957440, 33317912, 33954560, 41647390, 52008448, 65010560, 66635824, 67909120, 83294780, 104016896, 130021120, 133271648, 135818240, 166589560, 260042240, 266543296, 333179120, 520084480, 533086592, 666358240, 1066173184, 1332716480, 2132346368, 2665432960, 4264692736, 5330865920, 10661731840, 21323463680]

約数ペア:

[(1, 21323463680), (2, 10661731840), (4, 5330865920), (5, 4264692736), (8, 2665432960), (10, 2132346368), (16, 1332716480), (20, 1066173184), (32, 666358240), (40, 533086592), (41, 520084480), (64, 333179120), (80, 266543296), (82, 260042240), (128, 166589560), (157, 135818240), (160, 133271648), (164, 130021120), (205, 104016896), (256, 83294780), (314, 67909120), (320, 66635824), (328, 65010560), (410, 52008448), (512, 41647390), (628, 33954560), (640, 33317912), (647, 32957440), (656, 32505280), (785, 27163648), (820, 26004224), (1024, 20823695), (1256, 16977280), (1280, 16658956), (1294, 16478720), (1312, 16252640), (1570, 13581824), (1640, 13002112), (2512, 8488640), (2560, 8329478), (2588, 8239360), (2624, 8126320), (3140, 6790912), (3235, 6591488), (3280, 6501056), (5024, 4244320), (5120, 4164739), (5176, 4119680), (5248, 4063160), (6280, 3395456), (6437, 3312640), (6470, 3295744), (6560, 3250528), (10048, 2122160), (10352, 2059840), (10496, 2031580), (12560, 1697728), (12874, 1656320), (12940, 1647872), (13120, 1625264), (20096, 1061080), (20704, 1029920), (20992, 1015790), (25120, 848864), (25748, 828160), (25880, 823936), (26240, 812632), (26527, 803840), (32185, 662528), (40192, 530540), (41408, 514960), (41984, 507895), (50240, 424432), (51496, 414080), (51760, 411968), (52480, 406316), (53054, 401920), (64370, 331264), (80384, 265270), (82816, 257480), (100480, 212216), (101579, 209920), (102992, 207040), (103520, 205984), (104960, 203158), (106108, 200960), (128740, 165632), (132635, 160768)]