28904691725

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{293}}^1\times {\mathrm{421}}^1$

素因数の和:847

約数の個数: 96

約数和(自身を含む): 44799465984

約数和(自身を除く): 15894774259

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 103, 175, 293, 325, 421, 455, 515, 721, 1339, 1465, 2051, 2105, 2275, 2575, 2947, 3605, 3809, 5473, 6695, 7325, 9373, 10255, 10525, 14735, 18025, 19045, 26663, 27365, 30179, 33475, 38311, 43363, 46865, 51275, 73675, 95225, 123353, 133315, 136825, 150895, 191555, 211253, 216815, 234325, 303541, 392327, 563719, 616765, 666575, 754475, 863471, 957775, 1056265, 1084075, 1517705, 1603589, 1961635, 2746289, 2818595, 3083825, 3946033, 4317355, 5281325, 7588525, 8017945, 9808175, 11225123, 12705359, 13731445, 14092975, 19730165, 21586775, 40089725, 56125615, 63526795, 68657225, 88937513, 98650825, 165169667, 280628075, 317633975, 444687565, 825848335, 1156187669, 2223437825, 4129241675, 5780938345, 28904691725]

約数ペア:

[(1, 28904691725), (5, 5780938345), (7, 4129241675), (13, 2223437825), (25, 1156187669), (35, 825848335), (65, 444687565), (91, 317633975), (103, 280628075), (175, 165169667), (293, 98650825), (325, 88937513), (421, 68657225), (455, 63526795), (515, 56125615), (721, 40089725), (1339, 21586775), (1465, 19730165), (2051, 14092975), (2105, 13731445), (2275, 12705359), (2575, 11225123), (2947, 9808175), (3605, 8017945), (3809, 7588525), (5473, 5281325), (6695, 4317355), (7325, 3946033), (9373, 3083825), (10255, 2818595), (10525, 2746289), (14735, 1961635), (18025, 1603589), (19045, 1517705), (26663, 1084075), (27365, 1056265), (30179, 957775), (33475, 863471), (38311, 754475), (43363, 666575), (46865, 616765), (51275, 563719), (73675, 392327), (95225, 303541), (123353, 234325), (133315, 216815), (136825, 211253), (150895, 191555)]