2806965

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1$

素因数の和:111

約数の個数: 72

約数和(自身を含む): 6046560

約数和(自身を除く): 3239595

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 45, 49, 57, 63, 67, 95, 105, 133, 147, 171, 201, 245, 285, 315, 335, 399, 441, 469, 603, 665, 735, 855, 931, 1005, 1197, 1273, 1407, 1995, 2205, 2345, 2793, 3015, 3283, 3819, 4221, 4655, 5985, 6365, 7035, 8379, 8911, 9849, 11457, 13965, 16415, 19095, 21105, 26733, 29547, 41895, 44555, 49245, 57285, 62377, 80199, 133665, 147735, 187131, 311885, 400995, 561393, 935655, 2806965]

約数ペア:

[(1, 2806965), (3, 935655), (5, 561393), (7, 400995), (9, 311885), (15, 187131), (19, 147735), (21, 133665), (35, 80199), (45, 62377), (49, 57285), (57, 49245), (63, 44555), (67, 41895), (95, 29547), (105, 26733), (133, 21105), (147, 19095), (171, 16415), (201, 13965), (245, 11457), (285, 9849), (315, 8911), (335, 8379), (399, 7035), (441, 6365), (469, 5985), (603, 4655), (665, 4221), (735, 3819), (855, 3283), (931, 3015), (1005, 2793), (1197, 2345), (1273, 2205), (1407, 1995)]