81870194

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 153280512

約数和(自身を除く): 71410318

約数列:

[1, 2, 7, 14, 31, 41, 43, 62, 82, 86, 107, 214, 217, 287, 301, 434, 574, 602, 749, 1271, 1333, 1498, 1763, 2542, 2666, 3317, 3526, 4387, 4601, 6634, 8774, 8897, 9202, 9331, 12341, 17794, 18662, 23219, 24682, 30709, 32207, 46438, 54653, 61418, 64414, 109306, 135997, 142631, 188641, 271994, 285262, 377282, 382571, 765142, 951979, 998417, 1320487, 1903958, 1996834, 2640974, 5847871, 11695742, 40935097, 81870194]

約数ペア:

[(1, 81870194), (2, 40935097), (7, 11695742), (14, 5847871), (31, 2640974), (41, 1996834), (43, 1903958), (62, 1320487), (82, 998417), (86, 951979), (107, 765142), (214, 382571), (217, 377282), (287, 285262), (301, 271994), (434, 188641), (574, 142631), (602, 135997), (749, 109306), (1271, 64414), (1333, 61418), (1498, 54653), (1763, 46438), (2542, 32207), (2666, 30709), (3317, 24682), (3526, 23219), (4387, 18662), (4601, 17794), (6634, 12341), (8774, 9331), (8897, 9202)]