40428128

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{619}}^1$

素因数の和:799

約数の個数: 48

約数和(自身を含む): 86400720

約数和(自身を除く): 45972592

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 157, 208, 314, 416, 619, 628, 1238, 1256, 2041, 2476, 2512, 4082, 4952, 5024, 8047, 8164, 9904, 16094, 16328, 19808, 32188, 32656, 64376, 65312, 97183, 128752, 194366, 257504, 388732, 777464, 1263379, 1554928, 2526758, 3109856, 5053516, 10107032, 20214064, 40428128]

約数ペア:

[(1, 40428128), (2, 20214064), (4, 10107032), (8, 5053516), (13, 3109856), (16, 2526758), (26, 1554928), (32, 1263379), (52, 777464), (104, 388732), (157, 257504), (208, 194366), (314, 128752), (416, 97183), (619, 65312), (628, 64376), (1238, 32656), (1256, 32188), (2041, 19808), (2476, 16328), (2512, 16094), (4082, 9904), (4952, 8164), (5024, 8047)]