1991451098

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{8609}}^1$

素因数の和:8703

約数の個数: 64

約数和(自身を含む): 3888138240

約数和(自身を除く): 1896687142

約数列:

[1, 2, 7, 13, 14, 26, 31, 41, 62, 82, 91, 182, 217, 287, 403, 434, 533, 574, 806, 1066, 1271, 2542, 2821, 3731, 5642, 7462, 8609, 8897, 16523, 17218, 17794, 33046, 60263, 111917, 115661, 120526, 223834, 231322, 266879, 352969, 533758, 705938, 783419, 1566838, 1868153, 2470783, 3469427, 3736306, 4588597, 4941566, 6938854, 9177194, 10942039, 21884078, 24285989, 32120179, 48571978, 64240358, 76594273, 142246507, 153188546, 284493014, 995725549, 1991451098]

約数ペア:

[(1, 1991451098), (2, 995725549), (7, 284493014), (13, 153188546), (14, 142246507), (26, 76594273), (31, 64240358), (41, 48571978), (62, 32120179), (82, 24285989), (91, 21884078), (182, 10942039), (217, 9177194), (287, 6938854), (403, 4941566), (434, 4588597), (533, 3736306), (574, 3469427), (806, 2470783), (1066, 1868153), (1271, 1566838), (2542, 783419), (2821, 705938), (3731, 533758), (5642, 352969), (7462, 266879), (8609, 231322), (8897, 223834), (16523, 120526), (17218, 115661), (17794, 111917), (33046, 60263)]