64443860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{3491}}^1$

素因数の和:3584

約数の個数: 48

約数和(自身を含む): 147837312

約数和(自身を除く): 83393452

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 710, 923, 1420, 1846, 3491, 3692, 4615, 6982, 9230, 13964, 17455, 18460, 34910, 45383, 69820, 90766, 181532, 226915, 247861, 453830, 495722, 907660, 991444, 1239305, 2478610, 3222193, 4957220, 6444386, 12888772, 16110965, 32221930, 64443860]

約数ペア:

[(1, 64443860), (2, 32221930), (4, 16110965), (5, 12888772), (10, 6444386), (13, 4957220), (20, 3222193), (26, 2478610), (52, 1239305), (65, 991444), (71, 907660), (130, 495722), (142, 453830), (260, 247861), (284, 226915), (355, 181532), (710, 90766), (923, 69820), (1420, 45383), (1846, 34910), (3491, 18460), (3692, 17455), (4615, 13964), (6982, 9230)]