63997420

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{439}}^1$

素因数の和:682

約数の個数: 48

約数和(自身を含む): 139043520

約数和(自身を除く): 75046100

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 197, 370, 394, 439, 740, 788, 878, 985, 1756, 1970, 2195, 3940, 4390, 7289, 8780, 14578, 16243, 29156, 32486, 36445, 64972, 72890, 81215, 86483, 145780, 162430, 172966, 324860, 345932, 432415, 864830, 1729660, 3199871, 6399742, 12799484, 15999355, 31998710, 63997420]

約数ペア:

[(1, 63997420), (2, 31998710), (4, 15999355), (5, 12799484), (10, 6399742), (20, 3199871), (37, 1729660), (74, 864830), (148, 432415), (185, 345932), (197, 324860), (370, 172966), (394, 162430), (439, 145780), (740, 86483), (788, 81215), (878, 72890), (985, 64972), (1756, 36445), (1970, 32486), (2195, 29156), (3940, 16243), (4390, 14578), (7289, 8780)]