81816840

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{32467}}^1$

素因数の和:32491

約数の個数: 96

約数和(自身を含む): 303900480

約数和(自身を除く): 222083640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 32467, 64934, 97401, 129868, 162335, 194802, 227269, 259736, 292203, 324670, 389604, 454538, 487005, 584406, 649340, 681807, 779208, 909076, 974010, 1136345, 1168812, 1298680, 1363614, 1461015, 1818152, 1948020, 2045421, 2272690, 2337624, 2727228, 2922030, 3409035, 3896040, 4090842, 4545380, 5454456, 5844060, 6818070, 8181684, 9090760, 10227105, 11688120, 13636140, 16363368, 20454210, 27272280, 40908420, 81816840]

約数ペア:

[(1, 81816840), (2, 40908420), (3, 27272280), (4, 20454210), (5, 16363368), (6, 13636140), (7, 11688120), (8, 10227105), (9, 9090760), (10, 8181684), (12, 6818070), (14, 5844060), (15, 5454456), (18, 4545380), (20, 4090842), (21, 3896040), (24, 3409035), (28, 2922030), (30, 2727228), (35, 2337624), (36, 2272690), (40, 2045421), (42, 1948020), (45, 1818152), (56, 1461015), (60, 1363614), (63, 1298680), (70, 1168812), (72, 1136345), (84, 974010), (90, 909076), (105, 779208), (120, 681807), (126, 649340), (140, 584406), (168, 487005), (180, 454538), (210, 389604), (252, 324670), (280, 292203), (315, 259736), (360, 227269), (420, 194802), (504, 162335), (630, 129868), (840, 97401), (1260, 64934), (2520, 32467)]