123780020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2957}}^1$

素因数の和:3009

約数の個数: 96

約数和(自身を含む): 333946368

約数和(自身を除く): 210166348

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 23, 26, 28, 35, 46, 52, 65, 70, 91, 92, 115, 130, 140, 161, 182, 230, 260, 299, 322, 364, 455, 460, 598, 644, 805, 910, 1196, 1495, 1610, 1820, 2093, 2957, 2990, 3220, 4186, 5914, 5980, 8372, 10465, 11828, 14785, 20699, 20930, 29570, 38441, 41398, 41860, 59140, 68011, 76882, 82796, 103495, 136022, 153764, 192205, 206990, 269087, 272044, 340055, 384410, 413980, 476077, 538174, 680110, 768820, 884143, 952154, 1076348, 1345435, 1360220, 1768286, 1904308, 2380385, 2690870, 3536572, 4420715, 4760770, 5381740, 6189001, 8841430, 9521540, 12378002, 17682860, 24756004, 30945005, 61890010, 123780020]

約数ペア:

[(1, 123780020), (2, 61890010), (4, 30945005), (5, 24756004), (7, 17682860), (10, 12378002), (13, 9521540), (14, 8841430), (20, 6189001), (23, 5381740), (26, 4760770), (28, 4420715), (35, 3536572), (46, 2690870), (52, 2380385), (65, 1904308), (70, 1768286), (91, 1360220), (92, 1345435), (115, 1076348), (130, 952154), (140, 884143), (161, 768820), (182, 680110), (230, 538174), (260, 476077), (299, 413980), (322, 384410), (364, 340055), (455, 272044), (460, 269087), (598, 206990), (644, 192205), (805, 153764), (910, 136022), (1196, 103495), (1495, 82796), (1610, 76882), (1820, 68011), (2093, 59140), (2957, 41860), (2990, 41398), (3220, 38441), (4186, 29570), (5914, 20930), (5980, 20699), (8372, 14785), (10465, 11828)]