1390806428

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{643}}^1$

素因数の和:819

約数の個数: 72

約数和(自身を含む): 2769985680

約数和(自身を除く): 1379179252

約数列:

[1, 2, 4, 11, 22, 41, 44, 82, 109, 121, 164, 218, 242, 436, 451, 484, 643, 902, 1199, 1286, 1804, 2398, 2572, 4469, 4796, 4961, 7073, 8938, 9922, 13189, 14146, 17876, 19844, 26363, 26378, 28292, 49159, 52726, 52756, 70087, 77803, 98318, 105452, 140174, 155606, 196636, 280348, 289993, 311212, 540749, 579986, 770957, 1081498, 1159972, 1541914, 2162996, 2873567, 3083828, 3189923, 5747134, 6379846, 8480527, 11494268, 12759692, 16961054, 31609237, 33922108, 63218474, 126436948, 347701607, 695403214, 1390806428]

約数ペア:

[(1, 1390806428), (2, 695403214), (4, 347701607), (11, 126436948), (22, 63218474), (41, 33922108), (44, 31609237), (82, 16961054), (109, 12759692), (121, 11494268), (164, 8480527), (218, 6379846), (242, 5747134), (436, 3189923), (451, 3083828), (484, 2873567), (643, 2162996), (902, 1541914), (1199, 1159972), (1286, 1081498), (1804, 770957), (2398, 579986), (2572, 540749), (4469, 311212), (4796, 289993), (4961, 280348), (7073, 196636), (8938, 155606), (9922, 140174), (13189, 105452), (14146, 98318), (17876, 77803), (19844, 70087), (26363, 52756), (26378, 52726), (28292, 49159)]