208421640

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1451}}^1$

素因数の和:1497

約数の個数: 256

約数和(自身を含む): 836352000

約数和(自身を除く): 627930360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 19, 20, 21, 24, 27, 28, 30, 35, 36, 38, 40, 42, 45, 54, 56, 57, 60, 63, 70, 72, 76, 84, 90, 95, 105, 108, 114, 120, 126, 133, 135, 140, 152, 168, 171, 180, 189, 190, 210, 216, 228, 252, 266, 270, 280, 285, 315, 342, 360, 378, 380, 399, 420, 456, 504, 513, 532, 540, 570, 630, 665, 684, 756, 760, 798, 840, 855, 945, 1026, 1064, 1080, 1140, 1197, 1260, 1330, 1368, 1451, 1512, 1596, 1710, 1890, 1995, 2052, 2280, 2394, 2520, 2565, 2660, 2902, 3192, 3420, 3591, 3780, 3990, 4104, 4353, 4788, 5130, 5320, 5804, 5985, 6840, 7182, 7255, 7560, 7980, 8706, 9576, 10157, 10260, 11608, 11970, 13059, 14364, 14510, 15960, 17412, 17955, 20314, 20520, 21765, 23940, 26118, 27569, 28728, 29020, 30471, 34824, 35910, 39177, 40628, 43530, 47880, 50785, 52236, 55138, 58040, 60942, 65295, 71820, 78354, 81256, 82707, 87060, 91413, 101570, 104472, 110276, 121884, 130590, 137845, 143640, 152355, 156708, 165414, 174120, 182826, 192983, 195885, 203140, 220552, 243768, 248121, 261180, 274239, 275690, 304710, 313416, 330828, 365652, 385966, 391770, 406280, 413535, 457065, 496242, 522360, 548478, 551380, 578949, 609420, 661656, 731304, 744363, 771932, 783540, 827070, 914130, 964915, 992484, 1096956, 1102760, 1157898, 1218840, 1240605, 1371195, 1488726, 1543864, 1567080, 1654140, 1736847, 1828260, 1929830, 1984968, 2193912, 2315796, 2481210, 2742390, 2894745, 2977452, 3308280, 3473694, 3656520, 3721815, 3859660, 4631592, 4962420, 5210541, 5484780, 5789490, 5954904, 6947388, 7443630, 7719320, 8684235, 9924840, 10421082, 10969560, 11578980, 13894776, 14887260, 17368470, 20842164, 23157960, 26052705, 29774520, 34736940, 41684328, 52105410, 69473880, 104210820, 208421640]

約数ペア:

[(1, 208421640), (2, 104210820), (3, 69473880), (4, 52105410), (5, 41684328), (6, 34736940), (7, 29774520), (8, 26052705), (9, 23157960), (10, 20842164), (12, 17368470), (14, 14887260), (15, 13894776), (18, 11578980), (19, 10969560), (20, 10421082), (21, 9924840), (24, 8684235), (27, 7719320), (28, 7443630), (30, 6947388), (35, 5954904), (36, 5789490), (38, 5484780), (40, 5210541), (42, 4962420), (45, 4631592), (54, 3859660), (56, 3721815), (57, 3656520), (60, 3473694), (63, 3308280), (70, 2977452), (72, 2894745), (76, 2742390), (84, 2481210), (90, 2315796), (95, 2193912), (105, 1984968), (108, 1929830), (114, 1828260), (120, 1736847), (126, 1654140), (133, 1567080), (135, 1543864), (140, 1488726), (152, 1371195), (168, 1240605), (171, 1218840), (180, 1157898), (189, 1102760), (190, 1096956), (210, 992484), (216, 964915), (228, 914130), (252, 827070), (266, 783540), (270, 771932), (280, 744363), (285, 731304), (315, 661656), (342, 609420), (360, 578949), (378, 551380), (380, 548478), (399, 522360), (420, 496242), (456, 457065), (504, 413535), (513, 406280), (532, 391770), (540, 385966), (570, 365652), (630, 330828), (665, 313416), (684, 304710), (756, 275690), (760, 274239), (798, 261180), (840, 248121), (855, 243768), (945, 220552), (1026, 203140), (1064, 195885), (1080, 192983), (1140, 182826), (1197, 174120), (1260, 165414), (1330, 156708), (1368, 152355), (1451, 143640), (1512, 137845), (1596, 130590), (1710, 121884), (1890, 110276), (1995, 104472), (2052, 101570), (2280, 91413), (2394, 87060), (2520, 82707), (2565, 81256), (2660, 78354), (2902, 71820), (3192, 65295), (3420, 60942), (3591, 58040), (3780, 55138), (3990, 52236), (4104, 50785), (4353, 47880), (4788, 43530), (5130, 40628), (5320, 39177), (5804, 35910), (5985, 34824), (6840, 30471), (7182, 29020), (7255, 28728), (7560, 27569), (7980, 26118), (8706, 23940), (9576, 21765), (10157, 20520), (10260, 20314), (11608, 17955), (11970, 17412), (13059, 15960), (14364, 14510)]