81215834

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^2$

素因数の和:144

約数の個数: 72

約数和(自身を含む): 159101820

約数和(自身を除く): 77885986

約数列:

[1, 2, 7, 14, 17, 29, 34, 41, 49, 58, 82, 98, 119, 203, 238, 287, 406, 493, 574, 697, 833, 986, 1189, 1394, 1421, 1666, 1681, 2009, 2378, 2842, 3362, 3451, 4018, 4879, 6902, 8323, 9758, 11767, 16646, 20213, 23534, 24157, 28577, 34153, 40426, 48314, 48749, 57154, 58261, 68306, 82369, 97498, 116522, 141491, 164738, 200039, 282982, 341243, 400078, 682486, 828733, 990437, 1400273, 1657466, 1980874, 2388701, 2800546, 4777402, 5801131, 11602262, 40607917, 81215834]

約数ペア:

[(1, 81215834), (2, 40607917), (7, 11602262), (14, 5801131), (17, 4777402), (29, 2800546), (34, 2388701), (41, 1980874), (49, 1657466), (58, 1400273), (82, 990437), (98, 828733), (119, 682486), (203, 400078), (238, 341243), (287, 282982), (406, 200039), (493, 164738), (574, 141491), (697, 116522), (833, 97498), (986, 82369), (1189, 68306), (1394, 58261), (1421, 57154), (1666, 48749), (1681, 48314), (2009, 40426), (2378, 34153), (2842, 28577), (3362, 24157), (3451, 23534), (4018, 20213), (4879, 16646), (6902, 11767), (8323, 9758)]