858870025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1291}}^1$

素因数の和:1426

約数の個数: 48

約数和(自身を含む): 1211172480

約数和(自身を除く): 352302455

約数列:

[1, 5, 13, 23, 25, 65, 89, 115, 299, 325, 445, 575, 1157, 1291, 1495, 2047, 2225, 5785, 6455, 7475, 10235, 16783, 26611, 28925, 29693, 32275, 51175, 83915, 114899, 133055, 148465, 386009, 419575, 574495, 665275, 742325, 1493687, 1930045, 2642677, 2872475, 7468435, 9650225, 13213385, 34354801, 37342175, 66066925, 171774005, 858870025]

約数ペア:

[(1, 858870025), (5, 171774005), (13, 66066925), (23, 37342175), (25, 34354801), (65, 13213385), (89, 9650225), (115, 7468435), (299, 2872475), (325, 2642677), (445, 1930045), (575, 1493687), (1157, 742325), (1291, 665275), (1495, 574495), (2047, 419575), (2225, 386009), (5785, 148465), (6455, 133055), (7475, 114899), (10235, 83915), (16783, 51175), (26611, 32275), (28925, 29693)]