20503648

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1879}}^1$

素因数の和:1931

約数の個数: 48

約数和(自身を含む): 45480960

約数和(自身を除く): 24977312

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 88, 124, 176, 248, 341, 352, 496, 682, 992, 1364, 1879, 2728, 3758, 5456, 7516, 10912, 15032, 20669, 30064, 41338, 58249, 60128, 82676, 116498, 165352, 232996, 330704, 465992, 640739, 661408, 931984, 1281478, 1863968, 2562956, 5125912, 10251824, 20503648]

約数ペア:

[(1, 20503648), (2, 10251824), (4, 5125912), (8, 2562956), (11, 1863968), (16, 1281478), (22, 931984), (31, 661408), (32, 640739), (44, 465992), (62, 330704), (88, 232996), (124, 165352), (176, 116498), (248, 82676), (341, 60128), (352, 58249), (496, 41338), (682, 30064), (992, 20669), (1364, 15032), (1879, 10912), (2728, 7516), (3758, 5456)]