279826490

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{367}}^1\times {\mathrm{4013}}^1$

素因数の和:4406

約数の個数: 32

約数和(自身を含む): 531774720

約数和(自身を除く): 251948230

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 367, 734, 1835, 3670, 4013, 6973, 8026, 13946, 20065, 34865, 40130, 69730, 76247, 152494, 381235, 762470, 1472771, 2945542, 7363855, 14727710, 27982649, 55965298, 139913245, 279826490]

約数ペア:

[(1, 279826490), (2, 139913245), (5, 55965298), (10, 27982649), (19, 14727710), (38, 7363855), (95, 2945542), (190, 1472771), (367, 762470), (734, 381235), (1835, 152494), (3670, 76247), (4013, 69730), (6973, 40130), (8026, 34865), (13946, 20065)]