81030780

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{16673}}^1$

素因数の和:16697

約数の個数: 72

約数和(自身を含む): 254912112

約数和(自身を除く): 173881332

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1620, 2430, 4860, 16673, 33346, 50019, 66692, 83365, 100038, 150057, 166730, 200076, 250095, 300114, 333460, 450171, 500190, 600228, 750285, 900342, 1000380, 1350513, 1500570, 1800684, 2250855, 2701026, 3001140, 4051539, 4501710, 5402052, 6752565, 8103078, 9003420, 13505130, 16206156, 20257695, 27010260, 40515390, 81030780]

約数ペア:

[(1, 81030780), (2, 40515390), (3, 27010260), (4, 20257695), (5, 16206156), (6, 13505130), (9, 9003420), (10, 8103078), (12, 6752565), (15, 5402052), (18, 4501710), (20, 4051539), (27, 3001140), (30, 2701026), (36, 2250855), (45, 1800684), (54, 1500570), (60, 1350513), (81, 1000380), (90, 900342), (108, 750285), (135, 600228), (162, 500190), (180, 450171), (243, 333460), (270, 300114), (324, 250095), (405, 200076), (486, 166730), (540, 150057), (810, 100038), (972, 83365), (1215, 66692), (1620, 50019), (2430, 33346), (4860, 16673)]