31683040

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2789}}^1$

素因数の和:2875

約数の個数: 48

約数和(自身を含む): 75932640

約数和(自身を除く): 44249600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 2272, 2789, 2840, 5578, 5680, 11156, 11360, 13945, 22312, 27890, 44624, 55780, 89248, 111560, 198019, 223120, 396038, 446240, 792076, 990095, 1584152, 1980190, 3168304, 3960380, 6336608, 7920760, 15841520, 31683040]

約数ペア:

[(1, 31683040), (2, 15841520), (4, 7920760), (5, 6336608), (8, 3960380), (10, 3168304), (16, 1980190), (20, 1584152), (32, 990095), (40, 792076), (71, 446240), (80, 396038), (142, 223120), (160, 198019), (284, 111560), (355, 89248), (568, 55780), (710, 44624), (1136, 27890), (1420, 22312), (2272, 13945), (2789, 11360), (2840, 11156), (5578, 5680)]