128120895

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{21407}}^1$

素因数の和:21444

約数の個数: 48

約数和(自身を含む): 267171840

約数和(自身を除く): 139050945

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 45, 57, 63, 95, 105, 133, 171, 285, 315, 399, 665, 855, 1197, 1995, 5985, 21407, 64221, 107035, 149849, 192663, 321105, 406733, 449547, 749245, 963315, 1220199, 1348641, 2033665, 2247735, 2847131, 3660597, 6100995, 6743205, 8541393, 14235655, 18302985, 25624179, 42706965, 128120895]

約数ペア:

[(1, 128120895), (3, 42706965), (5, 25624179), (7, 18302985), (9, 14235655), (15, 8541393), (19, 6743205), (21, 6100995), (35, 3660597), (45, 2847131), (57, 2247735), (63, 2033665), (95, 1348641), (105, 1220199), (133, 963315), (171, 749245), (285, 449547), (315, 406733), (399, 321105), (665, 192663), (855, 149849), (1197, 107035), (1995, 64221), (5985, 21407)]