289898406

素因数分解:

$2^1\times 3^3\times 7^2\times {\mathrm{331}}^2$

素因数の和:687

約数の個数: 72

約数和(自身を含む): 751668120

約数和(自身を除く): 461769714

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 49, 54, 63, 98, 126, 147, 189, 294, 331, 378, 441, 662, 882, 993, 1323, 1986, 2317, 2646, 2979, 4634, 5958, 6951, 8937, 13902, 16219, 17874, 20853, 32438, 41706, 48657, 62559, 97314, 109561, 125118, 145971, 219122, 291942, 328683, 437913, 657366, 766927, 875826, 986049, 1533854, 1972098, 2300781, 2958147, 4601562, 5368489, 5916294, 6902343, 10736978, 13804686, 16105467, 20707029, 32210934, 41414058, 48316401, 96632802, 144949203, 289898406]

約数ペア:

[(1, 289898406), (2, 144949203), (3, 96632802), (6, 48316401), (7, 41414058), (9, 32210934), (14, 20707029), (18, 16105467), (21, 13804686), (27, 10736978), (42, 6902343), (49, 5916294), (54, 5368489), (63, 4601562), (98, 2958147), (126, 2300781), (147, 1972098), (189, 1533854), (294, 986049), (331, 875826), (378, 766927), (441, 657366), (662, 437913), (882, 328683), (993, 291942), (1323, 219122), (1986, 145971), (2317, 125118), (2646, 109561), (2979, 97314), (4634, 62559), (5958, 48657), (6951, 41706), (8937, 32438), (13902, 20853), (16219, 17874)]