20614500

素因数分解:

$2^2\times 3^4\times 5^3\times {\mathrm{509}}^1$

素因数の和:540

約数の個数: 120

約数和(自身を含む): 67387320

約数和(自身を除く): 46772820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 81, 90, 100, 108, 125, 135, 150, 162, 180, 225, 250, 270, 300, 324, 375, 405, 450, 500, 509, 540, 675, 750, 810, 900, 1018, 1125, 1350, 1500, 1527, 1620, 2025, 2036, 2250, 2545, 2700, 3054, 3375, 4050, 4500, 4581, 5090, 6108, 6750, 7635, 8100, 9162, 10125, 10180, 12725, 13500, 13743, 15270, 18324, 20250, 22905, 25450, 27486, 30540, 38175, 40500, 41229, 45810, 50900, 54972, 63625, 68715, 76350, 82458, 91620, 114525, 127250, 137430, 152700, 164916, 190875, 206145, 229050, 254500, 274860, 343575, 381750, 412290, 458100, 572625, 687150, 763500, 824580, 1030725, 1145250, 1374300, 1717875, 2061450, 2290500, 3435750, 4122900, 5153625, 6871500, 10307250, 20614500]

約数ペア:

[(1, 20614500), (2, 10307250), (3, 6871500), (4, 5153625), (5, 4122900), (6, 3435750), (9, 2290500), (10, 2061450), (12, 1717875), (15, 1374300), (18, 1145250), (20, 1030725), (25, 824580), (27, 763500), (30, 687150), (36, 572625), (45, 458100), (50, 412290), (54, 381750), (60, 343575), (75, 274860), (81, 254500), (90, 229050), (100, 206145), (108, 190875), (125, 164916), (135, 152700), (150, 137430), (162, 127250), (180, 114525), (225, 91620), (250, 82458), (270, 76350), (300, 68715), (324, 63625), (375, 54972), (405, 50900), (450, 45810), (500, 41229), (509, 40500), (540, 38175), (675, 30540), (750, 27486), (810, 25450), (900, 22905), (1018, 20250), (1125, 18324), (1350, 15270), (1500, 13743), (1527, 13500), (1620, 12725), (2025, 10180), (2036, 10125), (2250, 9162), (2545, 8100), (2700, 7635), (3054, 6750), (3375, 6108), (4050, 5090), (4500, 4581)]