131518640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{1451}}^1$

素因数の和:1578

約数の個数: 80

約数和(自身を含む): 337049856

約数和(自身を除く): 205531216

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 103, 110, 176, 206, 220, 412, 440, 515, 824, 880, 1030, 1133, 1451, 1648, 2060, 2266, 2902, 4120, 4532, 5665, 5804, 7255, 8240, 9064, 11330, 11608, 14510, 15961, 18128, 22660, 23216, 29020, 31922, 45320, 58040, 63844, 79805, 90640, 116080, 127688, 149453, 159610, 255376, 298906, 319220, 597812, 638440, 747265, 1195624, 1276880, 1494530, 1643983, 2391248, 2989060, 3287966, 5978120, 6575932, 8219915, 11956240, 13151864, 16439830, 26303728, 32879660, 65759320, 131518640]

約数ペア:

[(1, 131518640), (2, 65759320), (4, 32879660), (5, 26303728), (8, 16439830), (10, 13151864), (11, 11956240), (16, 8219915), (20, 6575932), (22, 5978120), (40, 3287966), (44, 2989060), (55, 2391248), (80, 1643983), (88, 1494530), (103, 1276880), (110, 1195624), (176, 747265), (206, 638440), (220, 597812), (412, 319220), (440, 298906), (515, 255376), (824, 159610), (880, 149453), (1030, 127688), (1133, 116080), (1451, 90640), (1648, 79805), (2060, 63844), (2266, 58040), (2902, 45320), (4120, 31922), (4532, 29020), (5665, 23216), (5804, 22660), (7255, 18128), (8240, 15961), (9064, 14510), (11330, 11608)]