20796661504

素因数分解:

$2^8\times {\mathrm{313}}^1\times {\mathrm{461}}^1\times {\mathrm{563}}^1$

素因数の和:1353

約数の個数: 72

約数和(自身を含む): 41809177872

約数和(自身を除く): 21012516368

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 313, 461, 563, 626, 922, 1126, 1252, 1844, 2252, 2504, 3688, 4504, 5008, 7376, 9008, 10016, 14752, 18016, 20032, 29504, 36032, 40064, 59008, 72064, 80128, 118016, 144128, 144293, 176219, 259543, 288586, 352438, 519086, 577172, 704876, 1038172, 1154344, 1409752, 2076344, 2308688, 2819504, 4152688, 4617376, 5639008, 8305376, 9234752, 11278016, 16610752, 18469504, 22556032, 33221504, 36939008, 45112064, 66443008, 81236959, 162473918, 324947836, 649895672, 1299791344, 2599582688, 5199165376, 10398330752, 20796661504]

約数ペア:

[(1, 20796661504), (2, 10398330752), (4, 5199165376), (8, 2599582688), (16, 1299791344), (32, 649895672), (64, 324947836), (128, 162473918), (256, 81236959), (313, 66443008), (461, 45112064), (563, 36939008), (626, 33221504), (922, 22556032), (1126, 18469504), (1252, 16610752), (1844, 11278016), (2252, 9234752), (2504, 8305376), (3688, 5639008), (4504, 4617376), (5008, 4152688), (7376, 2819504), (9008, 2308688), (10016, 2076344), (14752, 1409752), (18016, 1154344), (20032, 1038172), (29504, 704876), (36032, 577172), (40064, 519086), (59008, 352438), (72064, 288586), (80128, 259543), (118016, 176219), (144128, 144293)]