1998945

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1$

素因数の和:111

約数の個数: 64

約数和(自身を含む): 4112640

約数和(自身を除く): 2113695

約数列:

[1, 3, 5, 9, 13, 15, 17, 27, 39, 45, 51, 65, 67, 85, 117, 135, 153, 195, 201, 221, 255, 335, 351, 459, 585, 603, 663, 765, 871, 1005, 1105, 1139, 1755, 1809, 1989, 2295, 2613, 3015, 3315, 3417, 4355, 5695, 5967, 7839, 9045, 9945, 10251, 13065, 14807, 17085, 23517, 29835, 30753, 39195, 44421, 51255, 74035, 117585, 133263, 153765, 222105, 399789, 666315, 1998945]

約数ペア:

[(1, 1998945), (3, 666315), (5, 399789), (9, 222105), (13, 153765), (15, 133263), (17, 117585), (27, 74035), (39, 51255), (45, 44421), (51, 39195), (65, 30753), (67, 29835), (85, 23517), (117, 17085), (135, 14807), (153, 13065), (195, 10251), (201, 9945), (221, 9045), (255, 7839), (335, 5967), (351, 5695), (459, 4355), (585, 3417), (603, 3315), (663, 3015), (765, 2613), (871, 2295), (1005, 1989), (1105, 1809), (1139, 1755)]