20440360

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{263}}^1$

素因数の和:370

約数の個数: 64

約数和(自身を含む): 48470400

約数和(自身を除く): 28030040

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 67, 116, 134, 145, 232, 263, 268, 290, 335, 526, 536, 580, 670, 1052, 1160, 1315, 1340, 1943, 2104, 2630, 2680, 3886, 5260, 7627, 7772, 9715, 10520, 15254, 15544, 17621, 19430, 30508, 35242, 38135, 38860, 61016, 70484, 76270, 77720, 88105, 140968, 152540, 176210, 305080, 352420, 511009, 704840, 1022018, 2044036, 2555045, 4088072, 5110090, 10220180, 20440360]

約数ペア:

[(1, 20440360), (2, 10220180), (4, 5110090), (5, 4088072), (8, 2555045), (10, 2044036), (20, 1022018), (29, 704840), (40, 511009), (58, 352420), (67, 305080), (116, 176210), (134, 152540), (145, 140968), (232, 88105), (263, 77720), (268, 76270), (290, 70484), (335, 61016), (526, 38860), (536, 38135), (580, 35242), (670, 30508), (1052, 19430), (1160, 17621), (1315, 15544), (1340, 15254), (1943, 10520), (2104, 9715), (2630, 7772), (2680, 7627), (3886, 5260)]