20005168

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{761}}^1$

素因数の和:853

約数の個数: 40

約数和(自身を含む): 40818816

約数和(自身を除く): 20813648

約数列:

[1, 2, 4, 8, 16, 31, 53, 62, 106, 124, 212, 248, 424, 496, 761, 848, 1522, 1643, 3044, 3286, 6088, 6572, 12176, 13144, 23591, 26288, 40333, 47182, 80666, 94364, 161332, 188728, 322664, 377456, 645328, 1250323, 2500646, 5001292, 10002584, 20005168]

約数ペア:

[(1, 20005168), (2, 10002584), (4, 5001292), (8, 2500646), (16, 1250323), (31, 645328), (53, 377456), (62, 322664), (106, 188728), (124, 161332), (212, 94364), (248, 80666), (424, 47182), (496, 40333), (761, 26288), (848, 23591), (1522, 13144), (1643, 12176), (3044, 6572), (3286, 6088)]