81449060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{52889}}^1$

素因数の和:52916

約数の個数: 48

約数和(自身を含む): 213252480

約数和(自身を除く): 131803420

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 52889, 105778, 211556, 264445, 370223, 528890, 581779, 740446, 1057780, 1163558, 1480892, 1851115, 2327116, 2908895, 3702230, 4072453, 5817790, 7404460, 8144906, 11635580, 16289812, 20362265, 40724530, 81449060]

約数ペア:

[(1, 81449060), (2, 40724530), (4, 20362265), (5, 16289812), (7, 11635580), (10, 8144906), (11, 7404460), (14, 5817790), (20, 4072453), (22, 3702230), (28, 2908895), (35, 2327116), (44, 1851115), (55, 1480892), (70, 1163558), (77, 1057780), (110, 740446), (140, 581779), (154, 528890), (220, 370223), (308, 264445), (385, 211556), (770, 105778), (1540, 52889)]