78405440

素因数分解:

$2^6\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2753}}^1$

素因数の和:2859

約数の個数: 56

約数和(自身を含む): 188869320

約数和(自身を除く): 110463880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 160, 178, 320, 356, 445, 712, 890, 1424, 1780, 2753, 2848, 3560, 5506, 5696, 7120, 11012, 13765, 14240, 22024, 27530, 28480, 44048, 55060, 88096, 110120, 176192, 220240, 245017, 440480, 490034, 880960, 980068, 1225085, 1960136, 2450170, 3920272, 4900340, 7840544, 9800680, 15681088, 19601360, 39202720, 78405440]

約数ペア:

[(1, 78405440), (2, 39202720), (4, 19601360), (5, 15681088), (8, 9800680), (10, 7840544), (16, 4900340), (20, 3920272), (32, 2450170), (40, 1960136), (64, 1225085), (80, 980068), (89, 880960), (160, 490034), (178, 440480), (320, 245017), (356, 220240), (445, 176192), (712, 110120), (890, 88096), (1424, 55060), (1780, 44048), (2753, 28480), (2848, 27530), (3560, 22024), (5506, 14240), (5696, 13765), (7120, 11012)]