81567140

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{2099}}^1$

素因数の和:2204

約数の個数: 48

約数和(自身を含む): 179928000

約数和(自身を除く): 98360860

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 67, 116, 134, 145, 268, 290, 335, 580, 670, 1340, 1943, 2099, 3886, 4198, 7772, 8396, 9715, 10495, 19430, 20990, 38860, 41980, 60871, 121742, 140633, 243484, 281266, 304355, 562532, 608710, 703165, 1217420, 1406330, 2812660, 4078357, 8156714, 16313428, 20391785, 40783570, 81567140]

約数ペア:

[(1, 81567140), (2, 40783570), (4, 20391785), (5, 16313428), (10, 8156714), (20, 4078357), (29, 2812660), (58, 1406330), (67, 1217420), (116, 703165), (134, 608710), (145, 562532), (268, 304355), (290, 281266), (335, 243484), (580, 140633), (670, 121742), (1340, 60871), (1943, 41980), (2099, 38860), (3886, 20990), (4198, 19430), (7772, 10495), (8396, 9715)]