20321801280

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{641471}}^1$

素因数の和:641505

約数の個数: 168

約数和(自身を含む): 76253059584

約数和(自身を除く): 55931258304

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 64, 66, 72, 80, 88, 90, 96, 99, 110, 120, 132, 144, 160, 165, 176, 180, 192, 198, 220, 240, 264, 288, 320, 330, 352, 360, 396, 440, 480, 495, 528, 576, 660, 704, 720, 792, 880, 960, 990, 1056, 1320, 1440, 1584, 1760, 1980, 2112, 2640, 2880, 3168, 3520, 3960, 5280, 6336, 7920, 10560, 15840, 31680, 641471, 1282942, 1924413, 2565884, 3207355, 3848826, 5131768, 5773239, 6414710, 7056181, 7697652, 9622065, 10263536, 11546478, 12829420, 14112362, 15395304, 19244130, 20527072, 21168543, 23092956, 25658840, 28224724, 28866195, 30790608, 35280905, 38488260, 41054144, 42337086, 46185912, 51317680, 56449448, 57732390, 61581216, 63505629, 70561810, 76976520, 84674172, 92371824, 102635360, 105842715, 112898896, 115464780, 123162432, 127011258, 141123620, 153953040, 169348344, 184743648, 205270720, 211685430, 225797792, 230929560, 254022516, 282247240, 307906080, 317528145, 338696688, 369487296, 423370860, 451595584, 461859120, 508045032, 564494480, 615812160, 635056290, 677393376, 846741720, 923718240, 1016090064, 1128988960, 1270112580, 1354786752, 1693483440, 1847436480, 2032180128, 2257977920, 2540225160, 3386966880, 4064360256, 5080450320, 6773933760, 10160900640, 20321801280]

約数ペア:

[(1, 20321801280), (2, 10160900640), (3, 6773933760), (4, 5080450320), (5, 4064360256), (6, 3386966880), (8, 2540225160), (9, 2257977920), (10, 2032180128), (11, 1847436480), (12, 1693483440), (15, 1354786752), (16, 1270112580), (18, 1128988960), (20, 1016090064), (22, 923718240), (24, 846741720), (30, 677393376), (32, 635056290), (33, 615812160), (36, 564494480), (40, 508045032), (44, 461859120), (45, 451595584), (48, 423370860), (55, 369487296), (60, 338696688), (64, 317528145), (66, 307906080), (72, 282247240), (80, 254022516), (88, 230929560), (90, 225797792), (96, 211685430), (99, 205270720), (110, 184743648), (120, 169348344), (132, 153953040), (144, 141123620), (160, 127011258), (165, 123162432), (176, 115464780), (180, 112898896), (192, 105842715), (198, 102635360), (220, 92371824), (240, 84674172), (264, 76976520), (288, 70561810), (320, 63505629), (330, 61581216), (352, 57732390), (360, 56449448), (396, 51317680), (440, 46185912), (480, 42337086), (495, 41054144), (528, 38488260), (576, 35280905), (660, 30790608), (704, 28866195), (720, 28224724), (792, 25658840), (880, 23092956), (960, 21168543), (990, 20527072), (1056, 19244130), (1320, 15395304), (1440, 14112362), (1584, 12829420), (1760, 11546478), (1980, 10263536), (2112, 9622065), (2640, 7697652), (2880, 7056181), (3168, 6414710), (3520, 5773239), (3960, 5131768), (5280, 3848826), (6336, 3207355), (7920, 2565884), (10560, 1924413), (15840, 1282942), (31680, 641471)]