256029255

素因数分解:

$3^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{21799}}^1$

素因数の和:21845

約数の個数: 40

約数和(自身を含む): 474804000

約数和(自身を除く): 218774745

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 81, 87, 135, 145, 261, 405, 435, 783, 1305, 2349, 3915, 11745, 21799, 65397, 108995, 196191, 326985, 588573, 632171, 980955, 1765719, 1896513, 2942865, 3160855, 5689539, 8828595, 9482565, 17068617, 28447695, 51205851, 85343085, 256029255]

約数ペア:

[(1, 256029255), (3, 85343085), (5, 51205851), (9, 28447695), (15, 17068617), (27, 9482565), (29, 8828595), (45, 5689539), (81, 3160855), (87, 2942865), (135, 1896513), (145, 1765719), (261, 980955), (405, 632171), (435, 588573), (783, 326985), (1305, 196191), (2349, 108995), (3915, 65397), (11745, 21799)]