66464380

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{347}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 143178336

約数和(自身を除く): 76713956

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 157, 244, 305, 314, 347, 610, 628, 694, 785, 1220, 1388, 1570, 1735, 3140, 3470, 6940, 9577, 19154, 21167, 38308, 42334, 47885, 54479, 84668, 95770, 105835, 108958, 191540, 211670, 217916, 272395, 423340, 544790, 1089580, 3323219, 6646438, 13292876, 16616095, 33232190, 66464380]

約数ペア:

[(1, 66464380), (2, 33232190), (4, 16616095), (5, 13292876), (10, 6646438), (20, 3323219), (61, 1089580), (122, 544790), (157, 423340), (244, 272395), (305, 217916), (314, 211670), (347, 191540), (610, 108958), (628, 105835), (694, 95770), (785, 84668), (1220, 54479), (1388, 47885), (1570, 42334), (1735, 38308), (3140, 21167), (3470, 19154), (6940, 9577)]