20079968675

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{151}}^1\times {\mathrm{197}}^1$

素因数の和:469

約数の個数: 96

約数和(自身を含む): 28422180864

約数和(自身を除く): 8342212189

約数列:

[1, 5, 13, 25, 31, 65, 67, 151, 155, 197, 325, 335, 403, 755, 775, 871, 985, 1675, 1963, 2015, 2077, 2561, 3775, 4355, 4681, 4925, 6107, 9815, 10075, 10117, 10385, 12805, 13199, 21775, 23405, 27001, 29747, 30535, 49075, 50585, 51925, 60853, 64025, 65995, 79391, 117025, 131521, 135005, 148735, 152675, 171587, 252925, 304265, 313627, 329975, 386711, 396955, 409169, 657605, 675025, 743675, 857935, 922157, 1521325, 1568135, 1933555, 1984775, 1993049, 2045845, 3288025, 4077151, 4289675, 4610785, 5319197, 7840675, 9667775, 9965245, 10229225, 11988041, 20385755, 23053925, 25909637, 26595985, 49826225, 59940205, 61784519, 101928775, 129548185, 132979925, 299701025, 308922595, 647740925, 803198747, 1544612975, 4015993735, 20079968675]

約数ペア:

[(1, 20079968675), (5, 4015993735), (13, 1544612975), (25, 803198747), (31, 647740925), (65, 308922595), (67, 299701025), (151, 132979925), (155, 129548185), (197, 101928775), (325, 61784519), (335, 59940205), (403, 49826225), (755, 26595985), (775, 25909637), (871, 23053925), (985, 20385755), (1675, 11988041), (1963, 10229225), (2015, 9965245), (2077, 9667775), (2561, 7840675), (3775, 5319197), (4355, 4610785), (4681, 4289675), (4925, 4077151), (6107, 3288025), (9815, 2045845), (10075, 1993049), (10117, 1984775), (10385, 1933555), (12805, 1568135), (13199, 1521325), (21775, 922157), (23405, 857935), (27001, 743675), (29747, 675025), (30535, 657605), (49075, 409169), (50585, 396955), (51925, 386711), (60853, 329975), (64025, 313627), (65995, 304265), (79391, 252925), (117025, 171587), (131521, 152675), (135005, 148735)]