18983280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1$

素因数の和:239

約数の個数: 160

約数和(自身を含む): 64995840

約数和(自身を除く): 46012560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 23, 24, 30, 38, 40, 46, 48, 57, 60, 69, 76, 80, 92, 95, 114, 115, 120, 138, 152, 181, 184, 190, 228, 230, 240, 276, 285, 304, 345, 362, 368, 380, 437, 456, 460, 543, 552, 570, 690, 724, 760, 874, 905, 912, 920, 1086, 1104, 1140, 1311, 1380, 1448, 1520, 1748, 1810, 1840, 2172, 2185, 2280, 2622, 2715, 2760, 2896, 3439, 3496, 3620, 4163, 4344, 4370, 4560, 5244, 5430, 5520, 6555, 6878, 6992, 7240, 8326, 8688, 8740, 10317, 10488, 10860, 12489, 13110, 13756, 14480, 16652, 17195, 17480, 20634, 20815, 20976, 21720, 24978, 26220, 27512, 33304, 34390, 34960, 41268, 41630, 43440, 49956, 51585, 52440, 55024, 62445, 66608, 68780, 79097, 82536, 83260, 99912, 103170, 104880, 124890, 137560, 158194, 165072, 166520, 199824, 206340, 237291, 249780, 275120, 316388, 333040, 395485, 412680, 474582, 499560, 632776, 790970, 825360, 949164, 999120, 1186455, 1265552, 1581940, 1898328, 2372910, 3163880, 3796656, 4745820, 6327760, 9491640, 18983280]

約数ペア:

[(1, 18983280), (2, 9491640), (3, 6327760), (4, 4745820), (5, 3796656), (6, 3163880), (8, 2372910), (10, 1898328), (12, 1581940), (15, 1265552), (16, 1186455), (19, 999120), (20, 949164), (23, 825360), (24, 790970), (30, 632776), (38, 499560), (40, 474582), (46, 412680), (48, 395485), (57, 333040), (60, 316388), (69, 275120), (76, 249780), (80, 237291), (92, 206340), (95, 199824), (114, 166520), (115, 165072), (120, 158194), (138, 137560), (152, 124890), (181, 104880), (184, 103170), (190, 99912), (228, 83260), (230, 82536), (240, 79097), (276, 68780), (285, 66608), (304, 62445), (345, 55024), (362, 52440), (368, 51585), (380, 49956), (437, 43440), (456, 41630), (460, 41268), (543, 34960), (552, 34390), (570, 33304), (690, 27512), (724, 26220), (760, 24978), (874, 21720), (905, 20976), (912, 20815), (920, 20634), (1086, 17480), (1104, 17195), (1140, 16652), (1311, 14480), (1380, 13756), (1448, 13110), (1520, 12489), (1748, 10860), (1810, 10488), (1840, 10317), (2172, 8740), (2185, 8688), (2280, 8326), (2622, 7240), (2715, 6992), (2760, 6878), (2896, 6555), (3439, 5520), (3496, 5430), (3620, 5244), (4163, 4560), (4344, 4370)]