156641920

素因数分解:

$2^7\times 5^1\times {\mathrm{244753}}^1$

素因数の和:244772

約数の個数: 32

約数和(自身を含む): 374473620

約数和(自身を除く): 217831700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 244753, 489506, 979012, 1223765, 1958024, 2447530, 3916048, 4895060, 7832096, 9790120, 15664192, 19580240, 31328384, 39160480, 78320960, 156641920]

約数ペア:

[(1, 156641920), (2, 78320960), (4, 39160480), (5, 31328384), (8, 19580240), (10, 15664192), (16, 9790120), (20, 7832096), (32, 4895060), (40, 3916048), (64, 2447530), (80, 1958024), (128, 1223765), (160, 979012), (320, 489506), (640, 244753)]