20346112

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:171

約数の個数: 72

約数和(自身を含む): 44150400

約数和(自身を除く): 23804288

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 47, 64, 76, 89, 94, 128, 152, 178, 188, 256, 304, 356, 376, 608, 712, 752, 893, 1216, 1424, 1504, 1691, 1786, 2432, 2848, 3008, 3382, 3572, 4183, 4864, 5696, 6016, 6764, 7144, 8366, 11392, 12032, 13528, 14288, 16732, 22784, 27056, 28576, 33464, 54112, 57152, 66928, 79477, 108224, 114304, 133856, 158954, 216448, 228608, 267712, 317908, 432896, 535424, 635816, 1070848, 1271632, 2543264, 5086528, 10173056, 20346112]

約数ペア:

[(1, 20346112), (2, 10173056), (4, 5086528), (8, 2543264), (16, 1271632), (19, 1070848), (32, 635816), (38, 535424), (47, 432896), (64, 317908), (76, 267712), (89, 228608), (94, 216448), (128, 158954), (152, 133856), (178, 114304), (188, 108224), (256, 79477), (304, 66928), (356, 57152), (376, 54112), (608, 33464), (712, 28576), (752, 27056), (893, 22784), (1216, 16732), (1424, 14288), (1504, 13528), (1691, 12032), (1786, 11392), (2432, 8366), (2848, 7144), (3008, 6764), (3382, 6016), (3572, 5696), (4183, 4864)]