258889004

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{1049}}^1$

素因数の和:1214

約数の個数: 48

約数和(自身を含む): 508032000

約数和(自身を除く): 249142996

約数列:

[1, 2, 4, 11, 22, 44, 71, 79, 142, 158, 284, 316, 781, 869, 1049, 1562, 1738, 2098, 3124, 3476, 4196, 5609, 11218, 11539, 22436, 23078, 46156, 61699, 74479, 82871, 123398, 148958, 165742, 246796, 297916, 331484, 819269, 911581, 1638538, 1823162, 3277076, 3646324, 5883841, 11767682, 23535364, 64722251, 129444502, 258889004]

約数ペア:

[(1, 258889004), (2, 129444502), (4, 64722251), (11, 23535364), (22, 11767682), (44, 5883841), (71, 3646324), (79, 3277076), (142, 1823162), (158, 1638538), (284, 911581), (316, 819269), (781, 331484), (869, 297916), (1049, 246796), (1562, 165742), (1738, 148958), (2098, 123398), (3124, 82871), (3476, 74479), (4196, 61699), (5609, 46156), (11218, 23078), (11539, 22436)]