20802937675

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{8353}}^1$

素因数の和:8552

約数の個数: 48

約数和(自身を含む): 28424986240

約数和(自身を除く): 7622048565

約数列:

[1, 5, 13, 25, 65, 79, 97, 325, 395, 485, 1027, 1261, 1975, 2425, 5135, 6305, 7663, 8353, 25675, 31525, 38315, 41765, 99619, 108589, 191575, 208825, 498095, 542945, 659887, 810241, 2490475, 2714725, 3299435, 4051205, 8578531, 10533133, 16497175, 20256025, 42892655, 52665665, 64009039, 214463275, 263328325, 320045195, 832117507, 1600225975, 4160587535, 20802937675]

約数ペア:

[(1, 20802937675), (5, 4160587535), (13, 1600225975), (25, 832117507), (65, 320045195), (79, 263328325), (97, 214463275), (325, 64009039), (395, 52665665), (485, 42892655), (1027, 20256025), (1261, 16497175), (1975, 10533133), (2425, 8578531), (5135, 4051205), (6305, 3299435), (7663, 2714725), (8353, 2490475), (25675, 810241), (31525, 659887), (38315, 542945), (41765, 498095), (99619, 208825), (108589, 191575)]