81804158

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1\times {\mathrm{281}}^1$

素因数の和:512

約数の個数: 32

約数和(自身を含む): 133194240

約数和(自身を除く): 51390082

約数列:

[1, 2, 19, 38, 47, 94, 163, 281, 326, 562, 893, 1786, 3097, 5339, 6194, 7661, 10678, 13207, 15322, 26414, 45803, 91606, 145559, 250933, 291118, 501866, 870257, 1740514, 2152741, 4305482, 40902079, 81804158]

約数ペア:

[(1, 81804158), (2, 40902079), (19, 4305482), (38, 2152741), (47, 1740514), (94, 870257), (163, 501866), (281, 291118), (326, 250933), (562, 145559), (893, 91606), (1786, 45803), (3097, 26414), (5339, 15322), (6194, 13207), (7661, 10678)]