20880742912

素因数分解:

$2^9\times {\mathrm{31}}^1\times {\mathrm{373}}^1\times {\mathrm{3527}}^1$

素因数の和:3949

約数の個数: 80

約数和(自身を含む): 43194235392

約数和(自身を除く): 22313492480

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 373, 496, 512, 746, 992, 1492, 1984, 2984, 3527, 3968, 5968, 7054, 7936, 11563, 11936, 14108, 15872, 23126, 23872, 28216, 46252, 47744, 56432, 92504, 95488, 109337, 112864, 185008, 190976, 218674, 225728, 370016, 437348, 451456, 740032, 874696, 902912, 1315571, 1480064, 1749392, 1805824, 2631142, 2960128, 3498784, 5262284, 5920256, 6997568, 10524568, 13995136, 21049136, 27990272, 40782701, 42098272, 55980544, 81565402, 84196544, 163130804, 168393088, 326261608, 336786176, 652523216, 673572352, 1305046432, 2610092864, 5220185728, 10440371456, 20880742912]

約数ペア:

[(1, 20880742912), (2, 10440371456), (4, 5220185728), (8, 2610092864), (16, 1305046432), (31, 673572352), (32, 652523216), (62, 336786176), (64, 326261608), (124, 168393088), (128, 163130804), (248, 84196544), (256, 81565402), (373, 55980544), (496, 42098272), (512, 40782701), (746, 27990272), (992, 21049136), (1492, 13995136), (1984, 10524568), (2984, 6997568), (3527, 5920256), (3968, 5262284), (5968, 3498784), (7054, 2960128), (7936, 2631142), (11563, 1805824), (11936, 1749392), (14108, 1480064), (15872, 1315571), (23126, 902912), (23872, 874696), (28216, 740032), (46252, 451456), (47744, 437348), (56432, 370016), (92504, 225728), (95488, 218674), (109337, 190976), (112864, 185008)]