257555746

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{8521}}^1$

素因数の和:8674

約数の個数: 32

約数和(自身を含む): 471232512

約数和(自身を除く): 213676766

約数列:

[1, 2, 7, 14, 17, 34, 119, 127, 238, 254, 889, 1778, 2159, 4318, 8521, 15113, 17042, 30226, 59647, 119294, 144857, 289714, 1013999, 1082167, 2027998, 2164334, 7575169, 15150338, 18396839, 36793678, 128777873, 257555746]

約数ペア:

[(1, 257555746), (2, 128777873), (7, 36793678), (14, 18396839), (17, 15150338), (34, 7575169), (119, 2164334), (127, 2027998), (238, 1082167), (254, 1013999), (889, 289714), (1778, 144857), (2159, 119294), (4318, 59647), (8521, 30226), (15113, 17042)]