278380685

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{983}}^1$

素因数の和:1289

約数の個数: 32

約数和(自身を含む): 385413120

約数和(自身を除く): 107032435

約数列:

[1, 5, 11, 19, 55, 95, 209, 271, 983, 1045, 1355, 2981, 4915, 5149, 10813, 14905, 18677, 25745, 54065, 56639, 93385, 205447, 266393, 283195, 1027235, 1331965, 2930323, 5061467, 14651615, 25307335, 55676137, 278380685]

約数ペア:

[(1, 278380685), (5, 55676137), (11, 25307335), (19, 14651615), (55, 5061467), (95, 2930323), (209, 1331965), (271, 1027235), (983, 283195), (1045, 266393), (1355, 205447), (2981, 93385), (4915, 56639), (5149, 54065), (10813, 25745), (14905, 18677)]