256475989

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{773}}^1$

素因数の和:961

約数の個数: 32

約数和(自身を含む): 332881920

約数和(自身を除く): 76405931

約数列:

[1, 7, 11, 31, 77, 139, 217, 341, 773, 973, 1529, 2387, 4309, 5411, 8503, 10703, 23963, 30163, 47399, 59521, 107447, 167741, 263593, 331793, 752129, 1181917, 1845151, 3330857, 8273419, 23315999, 36639427, 256475989]

約数ペア:

[(1, 256475989), (7, 36639427), (11, 23315999), (31, 8273419), (77, 3330857), (139, 1845151), (217, 1181917), (341, 752129), (773, 331793), (973, 263593), (1529, 167741), (2387, 107447), (4309, 59521), (5411, 47399), (8503, 30163), (10703, 23963)]