20438528

素因数分解:

$2^9\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1$

素因数の和:239

約数の個数: 80

約数和(自身を含む): 47139840

約数和(自身を除く): 26701312

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 64, 76, 88, 128, 152, 176, 191, 209, 256, 304, 352, 382, 418, 512, 608, 704, 764, 836, 1216, 1408, 1528, 1672, 2101, 2432, 2816, 3056, 3344, 3629, 4202, 4864, 5632, 6112, 6688, 7258, 8404, 9728, 12224, 13376, 14516, 16808, 24448, 26752, 29032, 33616, 39919, 48896, 53504, 58064, 67232, 79838, 97792, 107008, 116128, 134464, 159676, 232256, 268928, 319352, 464512, 537856, 638704, 929024, 1075712, 1277408, 1858048, 2554816, 5109632, 10219264, 20438528]

約数ペア:

[(1, 20438528), (2, 10219264), (4, 5109632), (8, 2554816), (11, 1858048), (16, 1277408), (19, 1075712), (22, 929024), (32, 638704), (38, 537856), (44, 464512), (64, 319352), (76, 268928), (88, 232256), (128, 159676), (152, 134464), (176, 116128), (191, 107008), (209, 97792), (256, 79838), (304, 67232), (352, 58064), (382, 53504), (418, 48896), (512, 39919), (608, 33616), (704, 29032), (764, 26752), (836, 24448), (1216, 16808), (1408, 14516), (1528, 13376), (1672, 12224), (2101, 9728), (2432, 8404), (2816, 7258), (3056, 6688), (3344, 6112), (3629, 5632), (4202, 4864)]