27941680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{401}}^1$

素因数の和:494

約数の個数: 80

約数和(自身を含む): 71182944

約数和(自身を除く): 43241264

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 67, 80, 104, 130, 134, 208, 260, 268, 335, 401, 520, 536, 670, 802, 871, 1040, 1072, 1340, 1604, 1742, 2005, 2680, 3208, 3484, 4010, 4355, 5213, 5360, 6416, 6968, 8020, 8710, 10426, 13936, 16040, 17420, 20852, 26065, 26867, 32080, 34840, 41704, 52130, 53734, 69680, 83408, 104260, 107468, 134335, 208520, 214936, 268670, 349271, 417040, 429872, 537340, 698542, 1074680, 1397084, 1746355, 2149360, 2794168, 3492710, 5588336, 6985420, 13970840, 27941680]

約数ペア:

[(1, 27941680), (2, 13970840), (4, 6985420), (5, 5588336), (8, 3492710), (10, 2794168), (13, 2149360), (16, 1746355), (20, 1397084), (26, 1074680), (40, 698542), (52, 537340), (65, 429872), (67, 417040), (80, 349271), (104, 268670), (130, 214936), (134, 208520), (208, 134335), (260, 107468), (268, 104260), (335, 83408), (401, 69680), (520, 53734), (536, 52130), (670, 41704), (802, 34840), (871, 32080), (1040, 26867), (1072, 26065), (1340, 20852), (1604, 17420), (1742, 16040), (2005, 13936), (2680, 10426), (3208, 8710), (3484, 8020), (4010, 6968), (4355, 6416), (5213, 5360)]