81471840320

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{61781}}^1$

素因数の和:62128

約数の個数: 112

約数和(自身を含む): 209590739568

約数和(自身を除く): 128118899248

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 317, 320, 416, 520, 634, 832, 1040, 1268, 1585, 2080, 2536, 3170, 4121, 4160, 5072, 6340, 8242, 10144, 12680, 16484, 20288, 20605, 25360, 32968, 41210, 50720, 61781, 65936, 82420, 101440, 123562, 131872, 164840, 247124, 263744, 308905, 329680, 494248, 617810, 659360, 803153, 988496, 1235620, 1318720, 1606306, 1976992, 2471240, 3212612, 3953984, 4015765, 4942480, 6425224, 8031530, 9884960, 12850448, 16063060, 19584577, 19769920, 25700896, 32126120, 39169154, 51401792, 64252240, 78338308, 97922885, 128504480, 156676616, 195845770, 254599501, 257008960, 313353232, 391691540, 509199002, 626706464, 783383080, 1018398004, 1253412928, 1272997505, 1566766160, 2036796008, 2545995010, 3133532320, 4073592016, 5091990020, 6267064640, 8147184032, 10183980040, 16294368064, 20367960080, 40735920160, 81471840320]

約数ペア:

[(1, 81471840320), (2, 40735920160), (4, 20367960080), (5, 16294368064), (8, 10183980040), (10, 8147184032), (13, 6267064640), (16, 5091990020), (20, 4073592016), (26, 3133532320), (32, 2545995010), (40, 2036796008), (52, 1566766160), (64, 1272997505), (65, 1253412928), (80, 1018398004), (104, 783383080), (130, 626706464), (160, 509199002), (208, 391691540), (260, 313353232), (317, 257008960), (320, 254599501), (416, 195845770), (520, 156676616), (634, 128504480), (832, 97922885), (1040, 78338308), (1268, 64252240), (1585, 51401792), (2080, 39169154), (2536, 32126120), (3170, 25700896), (4121, 19769920), (4160, 19584577), (5072, 16063060), (6340, 12850448), (8242, 9884960), (10144, 8031530), (12680, 6425224), (16484, 4942480), (20288, 4015765), (20605, 3953984), (25360, 3212612), (32968, 2471240), (41210, 1976992), (50720, 1606306), (61781, 1318720), (65936, 1235620), (82420, 988496), (101440, 803153), (123562, 659360), (131872, 617810), (164840, 494248), (247124, 329680), (263744, 308905)]