20201563904

素因数分解:

$2^8\times {\mathrm{499}}^1\times {\mathrm{158141}}^1$

素因数の和:158656

約数の個数: 36

約数和(自身を含む): 40405281000

約数和(自身を除く): 20203717096

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 499, 998, 1996, 3992, 7984, 15968, 31936, 63872, 127744, 158141, 316282, 632564, 1265128, 2530256, 5060512, 10121024, 20242048, 40484096, 78912359, 157824718, 315649436, 631298872, 1262597744, 2525195488, 5050390976, 10100781952, 20201563904]

約数ペア:

[(1, 20201563904), (2, 10100781952), (4, 5050390976), (8, 2525195488), (16, 1262597744), (32, 631298872), (64, 315649436), (128, 157824718), (256, 78912359), (499, 40484096), (998, 20242048), (1996, 10121024), (3992, 5060512), (7984, 2530256), (15968, 1265128), (31936, 632564), (63872, 316282), (127744, 158141)]