765870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{521}}^1$

素因数の和:545

約数の個数: 48

約数和(自身を含む): 2142288

約数和(自身を除く): 1376418

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 521, 735, 1042, 1470, 1563, 2605, 3126, 3647, 5210, 7294, 7815, 10941, 15630, 18235, 21882, 25529, 36470, 51058, 54705, 76587, 109410, 127645, 153174, 255290, 382935, 765870]

約数ペア:

[(1, 765870), (2, 382935), (3, 255290), (5, 153174), (6, 127645), (7, 109410), (10, 76587), (14, 54705), (15, 51058), (21, 36470), (30, 25529), (35, 21882), (42, 18235), (49, 15630), (70, 10941), (98, 7815), (105, 7294), (147, 5210), (210, 3647), (245, 3126), (294, 2605), (490, 1563), (521, 1470), (735, 1042)]