20187712816

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{1123}}^1$

素因数の和:1466

約数の個数: 80

約数和(自身を含む): 40391164800

約数和(自身を除く): 20203451984

約数列:

[1, 2, 4, 8, 16, 59, 118, 137, 139, 236, 274, 278, 472, 548, 556, 944, 1096, 1112, 1123, 2192, 2224, 2246, 4492, 8083, 8201, 8984, 16166, 16402, 17968, 19043, 32332, 32804, 38086, 64664, 65608, 66257, 76172, 129328, 131216, 132514, 152344, 153851, 156097, 265028, 304688, 307702, 312194, 530056, 615404, 624388, 1060112, 1123537, 1230808, 1248776, 2247074, 2461616, 2497552, 4494148, 8988296, 9077209, 9209723, 17976592, 18154418, 18419446, 21385289, 36308836, 36838892, 42770578, 72617672, 73677784, 85541156, 145235344, 147355568, 171082312, 342164624, 1261732051, 2523464102, 5046928204, 10093856408, 20187712816]

約数ペア:

[(1, 20187712816), (2, 10093856408), (4, 5046928204), (8, 2523464102), (16, 1261732051), (59, 342164624), (118, 171082312), (137, 147355568), (139, 145235344), (236, 85541156), (274, 73677784), (278, 72617672), (472, 42770578), (548, 36838892), (556, 36308836), (944, 21385289), (1096, 18419446), (1112, 18154418), (1123, 17976592), (2192, 9209723), (2224, 9077209), (2246, 8988296), (4492, 4494148), (8083, 2497552), (8201, 2461616), (8984, 2247074), (16166, 1248776), (16402, 1230808), (17968, 1123537), (19043, 1060112), (32332, 624388), (32804, 615404), (38086, 530056), (64664, 312194), (65608, 307702), (66257, 304688), (76172, 265028), (129328, 156097), (131216, 153851), (132514, 152344)]