78854940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23057}}^1$

素因数の和:23091

約数の個数: 72

約数和(自身を含む): 251793360

約数和(自身を除く): 172938420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 23057, 46114, 69171, 92228, 115285, 138342, 207513, 230570, 276684, 345855, 415026, 438083, 461140, 691710, 830052, 876166, 1037565, 1314249, 1383420, 1752332, 2075130, 2190415, 2628498, 3942747, 4150260, 4380830, 5256996, 6571245, 7885494, 8761660, 13142490, 15770988, 19713735, 26284980, 39427470, 78854940]

約数ペア:

[(1, 78854940), (2, 39427470), (3, 26284980), (4, 19713735), (5, 15770988), (6, 13142490), (9, 8761660), (10, 7885494), (12, 6571245), (15, 5256996), (18, 4380830), (19, 4150260), (20, 3942747), (30, 2628498), (36, 2190415), (38, 2075130), (45, 1752332), (57, 1383420), (60, 1314249), (76, 1037565), (90, 876166), (95, 830052), (114, 691710), (171, 461140), (180, 438083), (190, 415026), (228, 345855), (285, 276684), (342, 230570), (380, 207513), (570, 138342), (684, 115285), (855, 92228), (1140, 69171), (1710, 46114), (3420, 23057)]