164285480

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{57847}}^1$

素因数の和:57929

約数の個数: 32

約数和(自身を含む): 374855040

約数和(自身を除く): 210569560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 57847, 115694, 231388, 289235, 462776, 578470, 1156940, 2313880, 4107137, 8214274, 16428548, 20535685, 32857096, 41071370, 82142740, 164285480]

約数ペア:

[(1, 164285480), (2, 82142740), (4, 41071370), (5, 32857096), (8, 20535685), (10, 16428548), (20, 8214274), (40, 4107137), (71, 2313880), (142, 1156940), (284, 578470), (355, 462776), (568, 289235), (710, 231388), (1420, 115694), (2840, 57847)]