1920657895

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{21061}}^1$

素因数の和:21163

約数の個数: 32

約数和(自身を含む): 2632581504

約数和(自身を除く): 711923609

約数列:

[1, 5, 13, 23, 61, 65, 115, 299, 305, 793, 1403, 1495, 3965, 7015, 18239, 21061, 91195, 105305, 273793, 484403, 1284721, 1368965, 2422015, 6297239, 6423605, 16701373, 29548583, 31486195, 83506865, 147742915, 384131579, 1920657895]

約数ペア:

[(1, 1920657895), (5, 384131579), (13, 147742915), (23, 83506865), (61, 31486195), (65, 29548583), (115, 16701373), (299, 6423605), (305, 6297239), (793, 2422015), (1403, 1368965), (1495, 1284721), (3965, 484403), (7015, 273793), (18239, 105305), (21061, 91195)]