281490215

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1\times {\mathrm{263}}^1$

素因数の和:559

約数の個数: 32

約数和(自身を含む): 364041216

約数和(自身を除く): 82551001

約数列:

[1, 5, 23, 41, 115, 205, 227, 263, 943, 1135, 1315, 4715, 5221, 6049, 9307, 10783, 26105, 30245, 46535, 53915, 59701, 214061, 248009, 298505, 1070305, 1240045, 1373123, 2447741, 6865615, 12238705, 56298043, 281490215]

約数ペア:

[(1, 281490215), (5, 56298043), (23, 12238705), (41, 6865615), (115, 2447741), (205, 1373123), (227, 1240045), (263, 1070305), (943, 298505), (1135, 248009), (1315, 214061), (4715, 59701), (5221, 53915), (6049, 46535), (9307, 30245), (10783, 26105)]