180451775

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1$

素因数の和:145

約数の個数: 72

約数和(自身を含む): 280740960

約数和(自身を除く): 100289185

約数列:

[1, 5, 7, 25, 29, 31, 35, 37, 145, 155, 175, 185, 203, 217, 259, 725, 775, 899, 925, 961, 1015, 1073, 1085, 1147, 1295, 4495, 4805, 5075, 5365, 5425, 5735, 6293, 6475, 6727, 7511, 8029, 22475, 24025, 26825, 27869, 28675, 31465, 33263, 33635, 35557, 37555, 40145, 139345, 157325, 166315, 168175, 177785, 187775, 195083, 200725, 232841, 248899, 696725, 831575, 888925, 975415, 1031153, 1164205, 1244495, 4877075, 5155765, 5821025, 6222475, 7218071, 25778825, 36090355, 180451775]

約数ペア:

[(1, 180451775), (5, 36090355), (7, 25778825), (25, 7218071), (29, 6222475), (31, 5821025), (35, 5155765), (37, 4877075), (145, 1244495), (155, 1164205), (175, 1031153), (185, 975415), (203, 888925), (217, 831575), (259, 696725), (725, 248899), (775, 232841), (899, 200725), (925, 195083), (961, 187775), (1015, 177785), (1073, 168175), (1085, 166315), (1147, 157325), (1295, 139345), (4495, 40145), (4805, 37555), (5075, 35557), (5365, 33635), (5425, 33263), (5735, 31465), (6293, 28675), (6475, 27869), (6727, 26825), (7511, 24025), (8029, 22475)]