81702080

素因数分解:

$2^6\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1949}}^1$

素因数の和:2097

約数の個数: 56

約数和(自身を含む): 196138800

約数和(自身を除く): 114436720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 131, 160, 262, 320, 524, 655, 1048, 1310, 1949, 2096, 2620, 3898, 4192, 5240, 7796, 8384, 9745, 10480, 15592, 19490, 20960, 31184, 38980, 41920, 62368, 77960, 124736, 155920, 255319, 311840, 510638, 623680, 1021276, 1276595, 2042552, 2553190, 4085104, 5106380, 8170208, 10212760, 16340416, 20425520, 40851040, 81702080]

約数ペア:

[(1, 81702080), (2, 40851040), (4, 20425520), (5, 16340416), (8, 10212760), (10, 8170208), (16, 5106380), (20, 4085104), (32, 2553190), (40, 2042552), (64, 1276595), (80, 1021276), (131, 623680), (160, 510638), (262, 311840), (320, 255319), (524, 155920), (655, 124736), (1048, 77960), (1310, 62368), (1949, 41920), (2096, 38980), (2620, 31184), (3898, 20960), (4192, 19490), (5240, 15592), (7796, 10480), (8384, 9745)]