18358275

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{991}}^1$

素因数の和:1036

約数の個数: 48

約数和(自身を含む): 34442240

約数和(自身を除く): 16083965

約数列:

[1, 3, 5, 13, 15, 19, 25, 39, 57, 65, 75, 95, 195, 247, 285, 325, 475, 741, 975, 991, 1235, 1425, 2973, 3705, 4955, 6175, 12883, 14865, 18525, 18829, 24775, 38649, 56487, 64415, 74325, 94145, 193245, 244777, 282435, 322075, 470725, 734331, 966225, 1223885, 1412175, 3671655, 6119425, 18358275]

約数ペア:

[(1, 18358275), (3, 6119425), (5, 3671655), (13, 1412175), (15, 1223885), (19, 966225), (25, 734331), (39, 470725), (57, 322075), (65, 282435), (75, 244777), (95, 193245), (195, 94145), (247, 74325), (285, 64415), (325, 56487), (475, 38649), (741, 24775), (975, 18829), (991, 18525), (1235, 14865), (1425, 12883), (2973, 6175), (3705, 4955)]