81008856

素因数分解:

$2^3\times 3^3\times {\mathrm{19}}^1\times {\mathrm{19739}}^1$

素因数の和:19773

約数の個数: 64

約数和(自身を含む): 236880000

約数和(自身を除く): 155871144

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 27, 36, 38, 54, 57, 72, 76, 108, 114, 152, 171, 216, 228, 342, 456, 513, 684, 1026, 1368, 2052, 4104, 19739, 39478, 59217, 78956, 118434, 157912, 177651, 236868, 355302, 375041, 473736, 532953, 710604, 750082, 1065906, 1125123, 1421208, 1500164, 2131812, 2250246, 3000328, 3375369, 4263624, 4500492, 6750738, 9000984, 10126107, 13501476, 20252214, 27002952, 40504428, 81008856]

約数ペア:

[(1, 81008856), (2, 40504428), (3, 27002952), (4, 20252214), (6, 13501476), (8, 10126107), (9, 9000984), (12, 6750738), (18, 4500492), (19, 4263624), (24, 3375369), (27, 3000328), (36, 2250246), (38, 2131812), (54, 1500164), (57, 1421208), (72, 1125123), (76, 1065906), (108, 750082), (114, 710604), (152, 532953), (171, 473736), (216, 375041), (228, 355302), (342, 236868), (456, 177651), (513, 157912), (684, 118434), (1026, 78956), (1368, 59217), (2052, 39478), (4104, 19739)]