55811920

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{8831}}^1$

素因数の和:8923

約数の個数: 40

約数和(自身を含む): 131420160

約数和(自身を除く): 75608240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 8831, 17662, 35324, 44155, 70648, 88310, 141296, 176620, 353240, 697649, 706480, 1395298, 2790596, 3488245, 5581192, 6976490, 11162384, 13952980, 27905960, 55811920]

約数ペア:

[(1, 55811920), (2, 27905960), (4, 13952980), (5, 11162384), (8, 6976490), (10, 5581192), (16, 3488245), (20, 2790596), (40, 1395298), (79, 706480), (80, 697649), (158, 353240), (316, 176620), (395, 141296), (632, 88310), (790, 70648), (1264, 44155), (1580, 35324), (3160, 17662), (6320, 8831)]