1290439990

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{409}}^1$

素因数の和:614

約数の個数: 96

約数和(自身を含む): 2786451840

約数和(自身を除く): 1496011850

約数列:

[1, 2, 5, 7, 10, 14, 35, 47, 49, 70, 94, 98, 137, 235, 245, 274, 329, 409, 470, 490, 658, 685, 818, 959, 1370, 1645, 1918, 2045, 2303, 2863, 3290, 4090, 4606, 4795, 5726, 6439, 6713, 9590, 11515, 12878, 13426, 14315, 19223, 20041, 23030, 28630, 32195, 33565, 38446, 40082, 45073, 56033, 64390, 67130, 90146, 96115, 100205, 112066, 134561, 192230, 200410, 225365, 269122, 280165, 315511, 392231, 450730, 560330, 631022, 672805, 784462, 941927, 1345610, 1577555, 1883854, 1961155, 2633551, 2745617, 3155110, 3922310, 4709635, 5267102, 5491234, 9419270, 13167755, 13728085, 18434857, 26335510, 27456170, 36869714, 92174285, 129043999, 184348570, 258087998, 645219995, 1290439990]

約数ペア:

[(1, 1290439990), (2, 645219995), (5, 258087998), (7, 184348570), (10, 129043999), (14, 92174285), (35, 36869714), (47, 27456170), (49, 26335510), (70, 18434857), (94, 13728085), (98, 13167755), (137, 9419270), (235, 5491234), (245, 5267102), (274, 4709635), (329, 3922310), (409, 3155110), (470, 2745617), (490, 2633551), (658, 1961155), (685, 1883854), (818, 1577555), (959, 1345610), (1370, 941927), (1645, 784462), (1918, 672805), (2045, 631022), (2303, 560330), (2863, 450730), (3290, 392231), (4090, 315511), (4606, 280165), (4795, 269122), (5726, 225365), (6439, 200410), (6713, 192230), (9590, 134561), (11515, 112066), (12878, 100205), (13426, 96115), (14315, 90146), (19223, 67130), (20041, 64390), (23030, 56033), (28630, 45073), (32195, 40082), (33565, 38446)]