20601720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{643}}^1$

素因数の和:749

約数の個数: 96

約数和(自身を含む): 67813200

約数和(自身を除く): 47211480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 89, 90, 120, 178, 180, 267, 356, 360, 445, 534, 643, 712, 801, 890, 1068, 1286, 1335, 1602, 1780, 1929, 2136, 2572, 2670, 3204, 3215, 3560, 3858, 4005, 5144, 5340, 5787, 6408, 6430, 7716, 8010, 9645, 10680, 11574, 12860, 15432, 16020, 19290, 23148, 25720, 28935, 32040, 38580, 46296, 57227, 57870, 77160, 114454, 115740, 171681, 228908, 231480, 286135, 343362, 457816, 515043, 572270, 686724, 858405, 1030086, 1144540, 1373448, 1716810, 2060172, 2289080, 2575215, 3433620, 4120344, 5150430, 6867240, 10300860, 20601720]

約数ペア:

[(1, 20601720), (2, 10300860), (3, 6867240), (4, 5150430), (5, 4120344), (6, 3433620), (8, 2575215), (9, 2289080), (10, 2060172), (12, 1716810), (15, 1373448), (18, 1144540), (20, 1030086), (24, 858405), (30, 686724), (36, 572270), (40, 515043), (45, 457816), (60, 343362), (72, 286135), (89, 231480), (90, 228908), (120, 171681), (178, 115740), (180, 114454), (267, 77160), (356, 57870), (360, 57227), (445, 46296), (534, 38580), (643, 32040), (712, 28935), (801, 25720), (890, 23148), (1068, 19290), (1286, 16020), (1335, 15432), (1602, 12860), (1780, 11574), (1929, 10680), (2136, 9645), (2572, 8010), (2670, 7716), (3204, 6430), (3215, 6408), (3560, 5787), (3858, 5340), (4005, 5144)]