2045225

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:90

約数の個数: 48

約数和(自身を含む): 3333120

約数和(自身を除く): 1287895

約数列:

[1, 5, 7, 13, 25, 29, 31, 35, 65, 91, 145, 155, 175, 203, 217, 325, 377, 403, 455, 725, 775, 899, 1015, 1085, 1885, 2015, 2275, 2639, 2821, 4495, 5075, 5425, 6293, 9425, 10075, 11687, 13195, 14105, 22475, 31465, 58435, 65975, 70525, 81809, 157325, 292175, 409045, 2045225]

約数ペア:

[(1, 2045225), (5, 409045), (7, 292175), (13, 157325), (25, 81809), (29, 70525), (31, 65975), (35, 58435), (65, 31465), (91, 22475), (145, 14105), (155, 13195), (175, 11687), (203, 10075), (217, 9425), (325, 6293), (377, 5425), (403, 5075), (455, 4495), (725, 2821), (775, 2639), (899, 2275), (1015, 2015), (1085, 1885)]