280423318

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{19891}}^1$

素因数の和:19972

約数の個数: 32

約数和(自身を含む): 515600640

約数和(自身を除く): 235177322

約数列:

[1, 2, 7, 14, 19, 38, 53, 106, 133, 266, 371, 742, 1007, 2014, 7049, 14098, 19891, 39782, 139237, 278474, 377929, 755858, 1054223, 2108446, 2645503, 5291006, 7379561, 14759122, 20030237, 40060474, 140211659, 280423318]

約数ペア:

[(1, 280423318), (2, 140211659), (7, 40060474), (14, 20030237), (19, 14759122), (38, 7379561), (53, 5291006), (106, 2645503), (133, 2108446), (266, 1054223), (371, 755858), (742, 377929), (1007, 278474), (2014, 139237), (7049, 39782), (14098, 19891)]