31331745

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 59097600

約数和(自身を除く): 27765855

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 53, 87, 135, 145, 151, 159, 261, 265, 435, 453, 477, 755, 783, 795, 1305, 1359, 1431, 1537, 2265, 2385, 3915, 4077, 4379, 4611, 6795, 7155, 7685, 8003, 13137, 13833, 20385, 21895, 23055, 24009, 39411, 40015, 41499, 65685, 69165, 72027, 118233, 120045, 197055, 207495, 216081, 232087, 360135, 591165, 696261, 1080405, 1160435, 2088783, 3481305, 6266349, 10443915, 31331745]

約数ペア:

[(1, 31331745), (3, 10443915), (5, 6266349), (9, 3481305), (15, 2088783), (27, 1160435), (29, 1080405), (45, 696261), (53, 591165), (87, 360135), (135, 232087), (145, 216081), (151, 207495), (159, 197055), (261, 120045), (265, 118233), (435, 72027), (453, 69165), (477, 65685), (755, 41499), (783, 40015), (795, 39411), (1305, 24009), (1359, 23055), (1431, 21895), (1537, 20385), (2265, 13833), (2385, 13137), (3915, 8003), (4077, 7685), (4379, 7155), (4611, 6795)]