31680976

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1$

素因数の和:391

約数の個数: 40

約数和(自身を含む): 62886600

約数和(自身を除く): 31205624

約数列:

[1, 2, 4, 8, 16, 97, 137, 149, 194, 274, 298, 388, 548, 596, 776, 1096, 1192, 1552, 2192, 2384, 13289, 14453, 20413, 26578, 28906, 40826, 53156, 57812, 81652, 106312, 115624, 163304, 212624, 231248, 326608, 1980061, 3960122, 7920244, 15840488, 31680976]

約数ペア:

[(1, 31680976), (2, 15840488), (4, 7920244), (8, 3960122), (16, 1980061), (97, 326608), (137, 231248), (149, 212624), (194, 163304), (274, 115624), (298, 106312), (388, 81652), (548, 57812), (596, 53156), (776, 40826), (1096, 28906), (1192, 26578), (1552, 20413), (2192, 14453), (2384, 13289)]