26562989375

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{647}}^1$

素因数の和:874

約数の個数: 80

約数和(自身を含む): 37183297536

約数和(自身を除く): 10620308161

約数列:

[1, 5, 13, 25, 31, 65, 125, 155, 163, 325, 403, 625, 647, 775, 815, 1625, 2015, 2119, 3235, 3875, 4075, 5053, 8125, 8411, 10075, 10595, 16175, 19375, 20057, 20375, 25265, 42055, 50375, 52975, 65689, 80875, 100285, 101875, 105461, 126325, 210275, 251875, 260741, 264875, 328445, 404375, 501425, 527305, 631625, 1051375, 1303705, 1324375, 1370993, 1642225, 2507125, 2636525, 3158125, 3269291, 5256875, 6518525, 6854965, 8211125, 12535625, 13182625, 16346455, 32592625, 34274825, 41055625, 42500783, 65913125, 81732275, 162963125, 171374125, 212503915, 408661375, 856870625, 1062519575, 2043306875, 5312597875, 26562989375]

約数ペア:

[(1, 26562989375), (5, 5312597875), (13, 2043306875), (25, 1062519575), (31, 856870625), (65, 408661375), (125, 212503915), (155, 171374125), (163, 162963125), (325, 81732275), (403, 65913125), (625, 42500783), (647, 41055625), (775, 34274825), (815, 32592625), (1625, 16346455), (2015, 13182625), (2119, 12535625), (3235, 8211125), (3875, 6854965), (4075, 6518525), (5053, 5256875), (8125, 3269291), (8411, 3158125), (10075, 2636525), (10595, 2507125), (16175, 1642225), (19375, 1370993), (20057, 1324375), (20375, 1303705), (25265, 1051375), (42055, 631625), (50375, 527305), (52975, 501425), (65689, 404375), (80875, 328445), (100285, 264875), (101875, 260741), (105461, 251875), (126325, 210275)]