161840385

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{3863}}^1$

素因数の和:3907

約数の個数: 72

約数和(自身を含む): 343586880

約数和(自身を除く): 181746495

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 45, 49, 57, 63, 95, 105, 133, 147, 171, 245, 285, 315, 399, 441, 665, 735, 855, 931, 1197, 1995, 2205, 2793, 3863, 4655, 5985, 8379, 11589, 13965, 19315, 27041, 34767, 41895, 57945, 73397, 81123, 135205, 173835, 189287, 220191, 243369, 366985, 405615, 513779, 567861, 660573, 946435, 1100955, 1216845, 1541337, 1703583, 2568895, 2839305, 3302865, 3596453, 4624011, 7706685, 8517915, 10789359, 17982265, 23120055, 32368077, 53946795, 161840385]

約数ペア:

[(1, 161840385), (3, 53946795), (5, 32368077), (7, 23120055), (9, 17982265), (15, 10789359), (19, 8517915), (21, 7706685), (35, 4624011), (45, 3596453), (49, 3302865), (57, 2839305), (63, 2568895), (95, 1703583), (105, 1541337), (133, 1216845), (147, 1100955), (171, 946435), (245, 660573), (285, 567861), (315, 513779), (399, 405615), (441, 366985), (665, 243369), (735, 220191), (855, 189287), (931, 173835), (1197, 135205), (1995, 81123), (2205, 73397), (2793, 57945), (3863, 41895), (4655, 34767), (5985, 27041), (8379, 19315), (11589, 13965)]