321717760

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1381}}^1$

素因数の和:1424

約数の個数: 160

約数和(自身を含む): 950064192

約数和(自身を除く): 628346432

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 128, 130, 140, 160, 182, 208, 224, 256, 260, 280, 320, 364, 416, 448, 455, 512, 520, 560, 640, 728, 832, 896, 910, 1040, 1120, 1280, 1381, 1456, 1664, 1792, 1820, 2080, 2240, 2560, 2762, 2912, 3328, 3584, 3640, 4160, 4480, 5524, 5824, 6656, 6905, 7280, 8320, 8960, 9667, 11048, 11648, 13810, 14560, 16640, 17920, 17953, 19334, 22096, 23296, 27620, 29120, 33280, 35906, 38668, 44192, 46592, 48335, 55240, 58240, 71812, 77336, 88384, 89765, 96670, 110480, 116480, 125671, 143624, 154672, 176768, 179530, 193340, 220960, 232960, 251342, 287248, 309344, 353536, 359060, 386680, 441920, 502684, 574496, 618688, 628355, 707072, 718120, 773360, 883840, 1005368, 1148992, 1237376, 1256710, 1436240, 1546720, 1767680, 2010736, 2297984, 2474752, 2513420, 2872480, 3093440, 3535360, 4021472, 4595968, 4949504, 5026840, 5744960, 6186880, 8042944, 9191936, 10053680, 11489920, 12373760, 16085888, 20107360, 22979840, 24747520, 32171776, 40214720, 45959680, 64343552, 80429440, 160858880, 321717760]

約数ペア:

[(1, 321717760), (2, 160858880), (4, 80429440), (5, 64343552), (7, 45959680), (8, 40214720), (10, 32171776), (13, 24747520), (14, 22979840), (16, 20107360), (20, 16085888), (26, 12373760), (28, 11489920), (32, 10053680), (35, 9191936), (40, 8042944), (52, 6186880), (56, 5744960), (64, 5026840), (65, 4949504), (70, 4595968), (80, 4021472), (91, 3535360), (104, 3093440), (112, 2872480), (128, 2513420), (130, 2474752), (140, 2297984), (160, 2010736), (182, 1767680), (208, 1546720), (224, 1436240), (256, 1256710), (260, 1237376), (280, 1148992), (320, 1005368), (364, 883840), (416, 773360), (448, 718120), (455, 707072), (512, 628355), (520, 618688), (560, 574496), (640, 502684), (728, 441920), (832, 386680), (896, 359060), (910, 353536), (1040, 309344), (1120, 287248), (1280, 251342), (1381, 232960), (1456, 220960), (1664, 193340), (1792, 179530), (1820, 176768), (2080, 154672), (2240, 143624), (2560, 125671), (2762, 116480), (2912, 110480), (3328, 96670), (3584, 89765), (3640, 88384), (4160, 77336), (4480, 71812), (5524, 58240), (5824, 55240), (6656, 48335), (6905, 46592), (7280, 44192), (8320, 38668), (8960, 35906), (9667, 33280), (11048, 29120), (11648, 27620), (13810, 23296), (14560, 22096), (16640, 19334), (17920, 17953)]