77916520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{2903}}^1$

素因数の和:2986

約数の個数: 64

約数和(自身を含む): 194451840

約数和(自身を除く): 116535320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 61, 88, 110, 122, 220, 244, 305, 440, 488, 610, 671, 1220, 1342, 2440, 2684, 2903, 3355, 5368, 5806, 6710, 11612, 13420, 14515, 23224, 26840, 29030, 31933, 58060, 63866, 116120, 127732, 159665, 177083, 255464, 319330, 354166, 638660, 708332, 885415, 1277320, 1416664, 1770830, 1947913, 3541660, 3895826, 7083320, 7791652, 9739565, 15583304, 19479130, 38958260, 77916520]

約数ペア:

[(1, 77916520), (2, 38958260), (4, 19479130), (5, 15583304), (8, 9739565), (10, 7791652), (11, 7083320), (20, 3895826), (22, 3541660), (40, 1947913), (44, 1770830), (55, 1416664), (61, 1277320), (88, 885415), (110, 708332), (122, 638660), (220, 354166), (244, 319330), (305, 255464), (440, 177083), (488, 159665), (610, 127732), (671, 116120), (1220, 63866), (1342, 58060), (2440, 31933), (2684, 29030), (2903, 26840), (3355, 23224), (5368, 14515), (5806, 13420), (6710, 11612)]