681115425

素因数分解:

$3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{3457}}^1$

素因数の和:3578

約数の個数: 48

約数和(自身を含む): 1173174912

約数和(自身を除く): 492059487

約数列:

[1, 3, 5, 15, 25, 37, 71, 75, 111, 185, 213, 355, 555, 925, 1065, 1775, 2627, 2775, 3457, 5325, 7881, 10371, 13135, 17285, 39405, 51855, 65675, 86425, 127909, 197025, 245447, 259275, 383727, 639545, 736341, 1227235, 1918635, 3197725, 3681705, 6136175, 9081539, 9593175, 18408525, 27244617, 45407695, 136223085, 227038475, 681115425]

約数ペア:

[(1, 681115425), (3, 227038475), (5, 136223085), (15, 45407695), (25, 27244617), (37, 18408525), (71, 9593175), (75, 9081539), (111, 6136175), (185, 3681705), (213, 3197725), (355, 1918635), (555, 1227235), (925, 736341), (1065, 639545), (1775, 383727), (2627, 259275), (2775, 245447), (3457, 197025), (5325, 127909), (7881, 86425), (10371, 65675), (13135, 51855), (17285, 39405)]