18862480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2591}}^1$

素因数の和:2624

約数の個数: 80

約数和(自身を含む): 53996544

約数和(自身を除く): 35134064

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 2591, 3640, 5182, 7280, 10364, 12955, 18137, 20728, 25910, 33683, 36274, 41456, 51820, 67366, 72548, 90685, 103640, 134732, 145096, 168415, 181370, 207280, 235781, 269464, 290192, 336830, 362740, 471562, 538928, 673660, 725480, 943124, 1178905, 1347320, 1450960, 1886248, 2357810, 2694640, 3772496, 4715620, 9431240, 18862480]

約数ペア:

[(1, 18862480), (2, 9431240), (4, 4715620), (5, 3772496), (7, 2694640), (8, 2357810), (10, 1886248), (13, 1450960), (14, 1347320), (16, 1178905), (20, 943124), (26, 725480), (28, 673660), (35, 538928), (40, 471562), (52, 362740), (56, 336830), (65, 290192), (70, 269464), (80, 235781), (91, 207280), (104, 181370), (112, 168415), (130, 145096), (140, 134732), (182, 103640), (208, 90685), (260, 72548), (280, 67366), (364, 51820), (455, 41456), (520, 36274), (560, 33683), (728, 25910), (910, 20728), (1040, 18137), (1456, 12955), (1820, 10364), (2591, 7280), (3640, 5182)]