81504780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{4513}}^1$

素因数の和:4575

約数の個数: 96

約数和(自身を含む): 266939904

約数和(自身を除く): 185435124

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 43, 60, 70, 84, 86, 105, 129, 140, 172, 210, 215, 258, 301, 420, 430, 516, 602, 645, 860, 903, 1204, 1290, 1505, 1806, 2580, 3010, 3612, 4513, 4515, 6020, 9026, 9030, 13539, 18052, 18060, 22565, 27078, 31591, 45130, 54156, 63182, 67695, 90260, 94773, 126364, 135390, 157955, 189546, 194059, 270780, 315910, 379092, 388118, 473865, 582177, 631820, 776236, 947730, 970295, 1164354, 1358413, 1895460, 1940590, 2328708, 2716826, 2910885, 3881180, 4075239, 5433652, 5821770, 6792065, 8150478, 11643540, 13584130, 16300956, 20376195, 27168260, 40752390, 81504780]

約数ペア:

[(1, 81504780), (2, 40752390), (3, 27168260), (4, 20376195), (5, 16300956), (6, 13584130), (7, 11643540), (10, 8150478), (12, 6792065), (14, 5821770), (15, 5433652), (20, 4075239), (21, 3881180), (28, 2910885), (30, 2716826), (35, 2328708), (42, 1940590), (43, 1895460), (60, 1358413), (70, 1164354), (84, 970295), (86, 947730), (105, 776236), (129, 631820), (140, 582177), (172, 473865), (210, 388118), (215, 379092), (258, 315910), (301, 270780), (420, 194059), (430, 189546), (516, 157955), (602, 135390), (645, 126364), (860, 94773), (903, 90260), (1204, 67695), (1290, 63182), (1505, 54156), (1806, 45130), (2580, 31591), (3010, 27078), (3612, 22565), (4513, 18060), (4515, 18052), (6020, 13539), (9026, 9030)]