18915229440

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71389}}^1$

素因数の和:71439

約数の個数: 216

約数和(自身を含む): 68291102880

約数和(自身を除く): 49375873440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 32, 36, 40, 45, 46, 48, 60, 64, 69, 72, 80, 90, 92, 96, 115, 120, 128, 138, 144, 160, 180, 184, 192, 207, 230, 240, 256, 276, 288, 320, 345, 360, 368, 384, 414, 460, 480, 552, 576, 640, 690, 720, 736, 768, 828, 920, 960, 1035, 1104, 1152, 1280, 1380, 1440, 1472, 1656, 1840, 1920, 2070, 2208, 2304, 2760, 2880, 2944, 3312, 3680, 3840, 4140, 4416, 5520, 5760, 5888, 6624, 7360, 8280, 8832, 11040, 11520, 13248, 14720, 16560, 17664, 22080, 26496, 29440, 33120, 44160, 52992, 66240, 71389, 88320, 132480, 142778, 214167, 264960, 285556, 356945, 428334, 571112, 642501, 713890, 856668, 1070835, 1142224, 1285002, 1427780, 1641947, 1713336, 2141670, 2284448, 2570004, 2855560, 3212505, 3283894, 3426672, 4283340, 4568896, 4925841, 5140008, 5711120, 6425010, 6567788, 6853344, 8209735, 8566680, 9137792, 9851682, 10280016, 11422240, 12850020, 13135576, 13706688, 14777523, 16419470, 17133360, 18275584, 19703364, 20560032, 22844480, 24629205, 25700040, 26271152, 27413376, 29555046, 32838940, 34266720, 39406728, 41120064, 45688960, 49258410, 51400080, 52542304, 54826752, 59110092, 65677880, 68533440, 73887615, 78813456, 82240128, 91377920, 98516820, 102800160, 105084608, 118220184, 131355760, 137066880, 147775230, 157626912, 164480256, 197033640, 205600320, 210169216, 236440368, 262711520, 274133760, 295550460, 315253824, 394067280, 411200640, 420338432, 472880736, 525423040, 591100920, 630507648, 788134560, 822401280, 945761472, 1050846080, 1182201840, 1261015296, 1576269120, 1891522944, 2101692160, 2364403680, 3152538240, 3783045888, 4728807360, 6305076480, 9457614720, 18915229440]

約数ペア:

[(1, 18915229440), (2, 9457614720), (3, 6305076480), (4, 4728807360), (5, 3783045888), (6, 3152538240), (8, 2364403680), (9, 2101692160), (10, 1891522944), (12, 1576269120), (15, 1261015296), (16, 1182201840), (18, 1050846080), (20, 945761472), (23, 822401280), (24, 788134560), (30, 630507648), (32, 591100920), (36, 525423040), (40, 472880736), (45, 420338432), (46, 411200640), (48, 394067280), (60, 315253824), (64, 295550460), (69, 274133760), (72, 262711520), (80, 236440368), (90, 210169216), (92, 205600320), (96, 197033640), (115, 164480256), (120, 157626912), (128, 147775230), (138, 137066880), (144, 131355760), (160, 118220184), (180, 105084608), (184, 102800160), (192, 98516820), (207, 91377920), (230, 82240128), (240, 78813456), (256, 73887615), (276, 68533440), (288, 65677880), (320, 59110092), (345, 54826752), (360, 52542304), (368, 51400080), (384, 49258410), (414, 45688960), (460, 41120064), (480, 39406728), (552, 34266720), (576, 32838940), (640, 29555046), (690, 27413376), (720, 26271152), (736, 25700040), (768, 24629205), (828, 22844480), (920, 20560032), (960, 19703364), (1035, 18275584), (1104, 17133360), (1152, 16419470), (1280, 14777523), (1380, 13706688), (1440, 13135576), (1472, 12850020), (1656, 11422240), (1840, 10280016), (1920, 9851682), (2070, 9137792), (2208, 8566680), (2304, 8209735), (2760, 6853344), (2880, 6567788), (2944, 6425010), (3312, 5711120), (3680, 5140008), (3840, 4925841), (4140, 4568896), (4416, 4283340), (5520, 3426672), (5760, 3283894), (5888, 3212505), (6624, 2855560), (7360, 2570004), (8280, 2284448), (8832, 2141670), (11040, 1713336), (11520, 1641947), (13248, 1427780), (14720, 1285002), (16560, 1142224), (17664, 1070835), (22080, 856668), (26496, 713890), (29440, 642501), (33120, 571112), (44160, 428334), (52992, 356945), (66240, 285556), (71389, 264960), (88320, 214167), (132480, 142778)]