80401239920

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{2609}}^1\times {\mathrm{6529}}^1$

素因数の和:9210

約数の個数: 80

約数和(自身を含む): 190203228000

約数和(自身を除く): 109801988080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 944, 1180, 2360, 2609, 4720, 5218, 6529, 10436, 13045, 13058, 20872, 26090, 26116, 32645, 41744, 52180, 52232, 65290, 104360, 104464, 130580, 153931, 208720, 261160, 307862, 385211, 522320, 615724, 769655, 770422, 1231448, 1539310, 1540844, 1926055, 2462896, 3078620, 3081688, 3852110, 6157240, 6163376, 7704220, 12314480, 15408440, 17034161, 30816880, 34068322, 68136644, 85170805, 136273288, 170341610, 272546576, 340683220, 681366440, 1005015499, 1362732880, 2010030998, 4020061996, 5025077495, 8040123992, 10050154990, 16080247984, 20100309980, 40200619960, 80401239920]

約数ペア:

[(1, 80401239920), (2, 40200619960), (4, 20100309980), (5, 16080247984), (8, 10050154990), (10, 8040123992), (16, 5025077495), (20, 4020061996), (40, 2010030998), (59, 1362732880), (80, 1005015499), (118, 681366440), (236, 340683220), (295, 272546576), (472, 170341610), (590, 136273288), (944, 85170805), (1180, 68136644), (2360, 34068322), (2609, 30816880), (4720, 17034161), (5218, 15408440), (6529, 12314480), (10436, 7704220), (13045, 6163376), (13058, 6157240), (20872, 3852110), (26090, 3081688), (26116, 3078620), (32645, 2462896), (41744, 1926055), (52180, 1540844), (52232, 1539310), (65290, 1231448), (104360, 770422), (104464, 769655), (130580, 615724), (153931, 522320), (208720, 385211), (261160, 307862)]