657243028

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{397}}^1$

素因数の和:537

約数の個数: 72

約数和(自身を含む): 1305185280

約数和(自身を除く): 647942252

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 79, 124, 158, 169, 316, 338, 397, 403, 676, 794, 806, 1027, 1588, 1612, 2054, 2449, 4108, 4898, 5161, 5239, 9796, 10322, 10478, 12307, 13351, 20644, 20956, 24614, 26702, 31363, 31837, 49228, 53404, 62726, 63674, 67093, 125452, 127348, 134186, 159991, 268372, 319982, 407719, 413881, 639964, 815438, 827762, 972253, 1630876, 1655524, 1944506, 2079883, 3889012, 4159766, 5300347, 8319532, 10600694, 12639289, 21201388, 25278578, 50557156, 164310757, 328621514, 657243028]

約数ペア:

[(1, 657243028), (2, 328621514), (4, 164310757), (13, 50557156), (26, 25278578), (31, 21201388), (52, 12639289), (62, 10600694), (79, 8319532), (124, 5300347), (158, 4159766), (169, 3889012), (316, 2079883), (338, 1944506), (397, 1655524), (403, 1630876), (676, 972253), (794, 827762), (806, 815438), (1027, 639964), (1588, 413881), (1612, 407719), (2054, 319982), (2449, 268372), (4108, 159991), (4898, 134186), (5161, 127348), (5239, 125452), (9796, 67093), (10322, 63674), (10478, 62726), (12307, 53404), (13351, 49228), (20644, 31837), (20956, 31363), (24614, 26702)]