254240

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{227}}^1$

素因数の和:249

約数の個数: 48

約数和(自身を含む): 689472

約数和(自身を除く): 435232

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 227, 280, 454, 560, 908, 1120, 1135, 1589, 1816, 2270, 3178, 3632, 4540, 6356, 7264, 7945, 9080, 12712, 15890, 18160, 25424, 31780, 36320, 50848, 63560, 127120, 254240]

約数ペア:

[(1, 254240), (2, 127120), (4, 63560), (5, 50848), (7, 36320), (8, 31780), (10, 25424), (14, 18160), (16, 15890), (20, 12712), (28, 9080), (32, 7945), (35, 7264), (40, 6356), (56, 4540), (70, 3632), (80, 3178), (112, 2270), (140, 1816), (160, 1589), (224, 1135), (227, 1120), (280, 908), (454, 560)]