278445440

素因数分解:

$2^7\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{683}}^1$

素因数の和:729

約数の個数: 192

約数和(自身を含む): 835122960

約数和(自身を除く): 556677520

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 64, 65, 70, 80, 91, 98, 104, 112, 128, 130, 140, 160, 182, 196, 208, 224, 245, 260, 280, 320, 364, 392, 416, 448, 455, 490, 520, 560, 637, 640, 683, 728, 784, 832, 896, 910, 980, 1040, 1120, 1274, 1366, 1456, 1568, 1664, 1820, 1960, 2080, 2240, 2548, 2732, 2912, 3136, 3185, 3415, 3640, 3920, 4160, 4480, 4781, 5096, 5464, 5824, 6272, 6370, 6830, 7280, 7840, 8320, 8879, 9562, 10192, 10928, 11648, 12740, 13660, 14560, 15680, 17758, 19124, 20384, 21856, 23905, 25480, 27320, 29120, 31360, 33467, 35516, 38248, 40768, 43712, 44395, 47810, 50960, 54640, 58240, 62153, 66934, 71032, 76496, 81536, 87424, 88790, 95620, 101920, 109280, 124306, 133868, 142064, 152992, 167335, 177580, 191240, 203840, 218560, 248612, 267736, 284128, 305984, 310765, 334670, 355160, 382480, 407680, 435071, 437120, 497224, 535472, 568256, 611968, 621530, 669340, 710320, 764960, 870142, 994448, 1070944, 1136512, 1243060, 1338680, 1420640, 1529920, 1740284, 1988896, 2141888, 2175355, 2486120, 2677360, 2841280, 3059840, 3480568, 3977792, 4283776, 4350710, 4972240, 5354720, 5682560, 6961136, 7955584, 8701420, 9944480, 10709440, 13922272, 17402840, 19888960, 21418880, 27844544, 34805680, 39777920, 55689088, 69611360, 139222720, 278445440]

約数ペア:

[(1, 278445440), (2, 139222720), (4, 69611360), (5, 55689088), (7, 39777920), (8, 34805680), (10, 27844544), (13, 21418880), (14, 19888960), (16, 17402840), (20, 13922272), (26, 10709440), (28, 9944480), (32, 8701420), (35, 7955584), (40, 6961136), (49, 5682560), (52, 5354720), (56, 4972240), (64, 4350710), (65, 4283776), (70, 3977792), (80, 3480568), (91, 3059840), (98, 2841280), (104, 2677360), (112, 2486120), (128, 2175355), (130, 2141888), (140, 1988896), (160, 1740284), (182, 1529920), (196, 1420640), (208, 1338680), (224, 1243060), (245, 1136512), (260, 1070944), (280, 994448), (320, 870142), (364, 764960), (392, 710320), (416, 669340), (448, 621530), (455, 611968), (490, 568256), (520, 535472), (560, 497224), (637, 437120), (640, 435071), (683, 407680), (728, 382480), (784, 355160), (832, 334670), (896, 310765), (910, 305984), (980, 284128), (1040, 267736), (1120, 248612), (1274, 218560), (1366, 203840), (1456, 191240), (1568, 177580), (1664, 167335), (1820, 152992), (1960, 142064), (2080, 133868), (2240, 124306), (2548, 109280), (2732, 101920), (2912, 95620), (3136, 88790), (3185, 87424), (3415, 81536), (3640, 76496), (3920, 71032), (4160, 66934), (4480, 62153), (4781, 58240), (5096, 54640), (5464, 50960), (5824, 47810), (6272, 44395), (6370, 43712), (6830, 40768), (7280, 38248), (7840, 35516), (8320, 33467), (8879, 31360), (9562, 29120), (10192, 27320), (10928, 25480), (11648, 23905), (12740, 21856), (13660, 20384), (14560, 19124), (15680, 17758)]