20161257185

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1\times {\mathrm{601}}^1$

素因数の和:1122

約数の個数: 64

約数和(自身を含む): 27462758400

約数和(自身を除く): 7301501215

約数列:

[1, 5, 17, 29, 31, 85, 145, 155, 439, 493, 527, 601, 899, 2195, 2465, 2635, 3005, 4495, 7463, 10217, 12731, 13609, 15283, 17429, 18631, 37315, 51085, 63655, 68045, 76415, 87145, 93155, 216427, 231353, 263839, 296293, 316727, 394661, 540299, 1082135, 1156765, 1319195, 1481465, 1583635, 1973305, 2701495, 4485263, 6709237, 7651331, 8179009, 9185083, 22426315, 33546185, 38256655, 40895045, 45925415, 130072627, 139043153, 237191261, 650363135, 695215765, 1185956305, 4032251437, 20161257185]

約数ペア:

[(1, 20161257185), (5, 4032251437), (17, 1185956305), (29, 695215765), (31, 650363135), (85, 237191261), (145, 139043153), (155, 130072627), (439, 45925415), (493, 40895045), (527, 38256655), (601, 33546185), (899, 22426315), (2195, 9185083), (2465, 8179009), (2635, 7651331), (3005, 6709237), (4495, 4485263), (7463, 2701495), (10217, 1973305), (12731, 1583635), (13609, 1481465), (15283, 1319195), (17429, 1156765), (18631, 1082135), (37315, 540299), (51085, 394661), (63655, 316727), (68045, 296293), (76415, 263839), (87145, 231353), (93155, 216427)]