20087940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{263}}^1$

素因数の和:361

約数の個数: 96

約数和(自身を含む): 60318720

約数和(自身を除く): 40230780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 67, 76, 95, 114, 134, 190, 201, 228, 263, 268, 285, 335, 380, 402, 526, 570, 670, 789, 804, 1005, 1052, 1140, 1273, 1315, 1340, 1578, 2010, 2546, 2630, 3156, 3819, 3945, 4020, 4997, 5092, 5260, 6365, 7638, 7890, 9994, 12730, 14991, 15276, 15780, 17621, 19095, 19988, 24985, 25460, 29982, 35242, 38190, 49970, 52863, 59964, 70484, 74955, 76380, 88105, 99940, 105726, 149910, 176210, 211452, 264315, 299820, 334799, 352420, 528630, 669598, 1004397, 1057260, 1339196, 1673995, 2008794, 3347990, 4017588, 5021985, 6695980, 10043970, 20087940]

約数ペア:

[(1, 20087940), (2, 10043970), (3, 6695980), (4, 5021985), (5, 4017588), (6, 3347990), (10, 2008794), (12, 1673995), (15, 1339196), (19, 1057260), (20, 1004397), (30, 669598), (38, 528630), (57, 352420), (60, 334799), (67, 299820), (76, 264315), (95, 211452), (114, 176210), (134, 149910), (190, 105726), (201, 99940), (228, 88105), (263, 76380), (268, 74955), (285, 70484), (335, 59964), (380, 52863), (402, 49970), (526, 38190), (570, 35242), (670, 29982), (789, 25460), (804, 24985), (1005, 19988), (1052, 19095), (1140, 17621), (1273, 15780), (1315, 15276), (1340, 14991), (1578, 12730), (2010, 9994), (2546, 7890), (2630, 7638), (3156, 6365), (3819, 5260), (3945, 5092), (4020, 4997)]