20508448

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{379}}^1$

素因数の和:497

約数の個数: 48

約数和(自身を含む): 43092000

約数和(自身を除く): 22583552

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 89, 152, 178, 304, 356, 379, 608, 712, 758, 1424, 1516, 1691, 2848, 3032, 3382, 6064, 6764, 7201, 12128, 13528, 14402, 27056, 28804, 33731, 54112, 57608, 67462, 115216, 134924, 230432, 269848, 539696, 640889, 1079392, 1281778, 2563556, 5127112, 10254224, 20508448]

約数ペア:

[(1, 20508448), (2, 10254224), (4, 5127112), (8, 2563556), (16, 1281778), (19, 1079392), (32, 640889), (38, 539696), (76, 269848), (89, 230432), (152, 134924), (178, 115216), (304, 67462), (356, 57608), (379, 54112), (608, 33731), (712, 28804), (758, 27056), (1424, 14402), (1516, 13528), (1691, 12128), (2848, 7201), (3032, 6764), (3382, 6064)]