281295

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1$

素因数の和:84

約数の個数: 48

約数和(自身を含む): 599040

約数和(自身を除く): 317745

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 45, 47, 57, 63, 95, 105, 133, 141, 171, 235, 285, 315, 329, 399, 423, 665, 705, 855, 893, 987, 1197, 1645, 1995, 2115, 2679, 2961, 4465, 4935, 5985, 6251, 8037, 13395, 14805, 18753, 31255, 40185, 56259, 93765, 281295]

約数ペア:

[(1, 281295), (3, 93765), (5, 56259), (7, 40185), (9, 31255), (15, 18753), (19, 14805), (21, 13395), (35, 8037), (45, 6251), (47, 5985), (57, 4935), (63, 4465), (95, 2961), (105, 2679), (133, 2115), (141, 1995), (171, 1645), (235, 1197), (285, 987), (315, 893), (329, 855), (399, 705), (423, 665)]