257218995

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{9011}}^1$

素因数の和:9203

約数の個数: 32

約数和(自身を含む): 451609344

約数和(自身を除く): 194390349

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 173, 519, 865, 1903, 2595, 5709, 9011, 9515, 27033, 28545, 45055, 99121, 135165, 297363, 495605, 1486815, 1558903, 4676709, 7794515, 17147933, 23383545, 51443799, 85739665, 257218995]

約数ペア:

[(1, 257218995), (3, 85739665), (5, 51443799), (11, 23383545), (15, 17147933), (33, 7794515), (55, 4676709), (165, 1558903), (173, 1486815), (519, 495605), (865, 297363), (1903, 135165), (2595, 99121), (5709, 45055), (9011, 28545), (9515, 27033)]