18488672

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{647}}^1$

素因数の和:723

約数の個数: 48

約数和(自身を含む): 39191040

約数和(自身を除く): 20702368

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 47, 76, 94, 152, 188, 304, 376, 608, 647, 752, 893, 1294, 1504, 1786, 2588, 3572, 5176, 7144, 10352, 12293, 14288, 20704, 24586, 28576, 30409, 49172, 60818, 98344, 121636, 196688, 243272, 393376, 486544, 577771, 973088, 1155542, 2311084, 4622168, 9244336, 18488672]

約数ペア:

[(1, 18488672), (2, 9244336), (4, 4622168), (8, 2311084), (16, 1155542), (19, 973088), (32, 577771), (38, 486544), (47, 393376), (76, 243272), (94, 196688), (152, 121636), (188, 98344), (304, 60818), (376, 49172), (608, 30409), (647, 28576), (752, 24586), (893, 20704), (1294, 14288), (1504, 12293), (1786, 10352), (2588, 7144), (3572, 5176)]