858616820

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{13037}}^1$

素因数の和:13172

約数の個数: 48

約数和(自身を含む): 1872778320

約数和(自身を除く): 1014161500

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 89, 148, 178, 185, 356, 370, 445, 740, 890, 1780, 3293, 6586, 13037, 13172, 16465, 26074, 32930, 52148, 65185, 65860, 130370, 260740, 482369, 964738, 1160293, 1929476, 2320586, 2411845, 4641172, 4823690, 5801465, 9647380, 11602930, 23205860, 42930841, 85861682, 171723364, 214654205, 429308410, 858616820]

約数ペア:

[(1, 858616820), (2, 429308410), (4, 214654205), (5, 171723364), (10, 85861682), (20, 42930841), (37, 23205860), (74, 11602930), (89, 9647380), (148, 5801465), (178, 4823690), (185, 4641172), (356, 2411845), (370, 2320586), (445, 1929476), (740, 1160293), (890, 964738), (1780, 482369), (3293, 260740), (6586, 130370), (13037, 65860), (13172, 65185), (16465, 52148), (26074, 32930)]