28124925

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1$

素因数の和:302

約数の個数: 48

約数和(自身を含む): 49074240

約数和(自身を除く): 20949315

約数列:

[1, 3, 5, 15, 25, 29, 67, 75, 87, 145, 193, 201, 335, 435, 579, 725, 965, 1005, 1675, 1943, 2175, 2895, 4825, 5025, 5597, 5829, 9715, 12931, 14475, 16791, 27985, 29145, 38793, 48575, 64655, 83955, 139925, 145725, 193965, 323275, 374999, 419775, 969825, 1124997, 1874995, 5624985, 9374975, 28124925]

約数ペア:

[(1, 28124925), (3, 9374975), (5, 5624985), (15, 1874995), (25, 1124997), (29, 969825), (67, 419775), (75, 374999), (87, 323275), (145, 193965), (193, 145725), (201, 139925), (335, 83955), (435, 64655), (579, 48575), (725, 38793), (965, 29145), (1005, 27985), (1675, 16791), (1943, 14475), (2175, 12931), (2895, 9715), (4825, 5829), (5025, 5597)]