2016221675

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{4999}}^1$

素因数の和:5112

約数の個数: 48

約数和(自身を含む): 2890440000

約数和(自身を除く): 874218325

約数列:

[1, 5, 13, 17, 25, 65, 73, 85, 221, 325, 365, 425, 949, 1105, 1241, 1825, 4745, 4999, 5525, 6205, 16133, 23725, 24995, 31025, 64987, 80665, 84983, 124975, 324935, 364927, 403325, 424915, 1104779, 1624675, 1824635, 2124575, 4744051, 5523895, 6203759, 9123175, 23720255, 27619475, 31018795, 80648867, 118601275, 155093975, 403244335, 2016221675]

約数ペア:

[(1, 2016221675), (5, 403244335), (13, 155093975), (17, 118601275), (25, 80648867), (65, 31018795), (73, 27619475), (85, 23720255), (221, 9123175), (325, 6203759), (365, 5523895), (425, 4744051), (949, 2124575), (1105, 1824635), (1241, 1624675), (1825, 1104779), (4745, 424915), (4999, 403325), (5525, 364927), (6205, 324935), (16133, 124975), (23725, 84983), (24995, 80665), (31025, 64987)]