20080128

素因数分解:

$2^9\times 3^1\times {\mathrm{17}}^1\times {\mathrm{769}}^1$

素因数の和:807

約数の個数: 80

約数和(自身を含む): 56715120

約数和(自身を除く): 36634992

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 32, 34, 48, 51, 64, 68, 96, 102, 128, 136, 192, 204, 256, 272, 384, 408, 512, 544, 768, 769, 816, 1088, 1536, 1538, 1632, 2176, 2307, 3076, 3264, 4352, 4614, 6152, 6528, 8704, 9228, 12304, 13056, 13073, 18456, 24608, 26112, 26146, 36912, 39219, 49216, 52292, 73824, 78438, 98432, 104584, 147648, 156876, 196864, 209168, 295296, 313752, 393728, 418336, 590592, 627504, 836672, 1181184, 1255008, 1673344, 2510016, 3346688, 5020032, 6693376, 10040064, 20080128]

約数ペア:

[(1, 20080128), (2, 10040064), (3, 6693376), (4, 5020032), (6, 3346688), (8, 2510016), (12, 1673344), (16, 1255008), (17, 1181184), (24, 836672), (32, 627504), (34, 590592), (48, 418336), (51, 393728), (64, 313752), (68, 295296), (96, 209168), (102, 196864), (128, 156876), (136, 147648), (192, 104584), (204, 98432), (256, 78438), (272, 73824), (384, 52292), (408, 49216), (512, 39219), (544, 36912), (768, 26146), (769, 26112), (816, 24608), (1088, 18456), (1536, 13073), (1538, 13056), (1632, 12304), (2176, 9228), (2307, 8704), (3076, 6528), (3264, 6152), (4352, 4614)]