309501985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{269}}^1\times {\mathrm{571}}^1$

素因数の和:889

約数の個数: 32

約数和(自身を含む): 415134720

約数和(自身を除く): 105632735

約数列:

[1, 5, 13, 31, 65, 155, 269, 403, 571, 1345, 2015, 2855, 3497, 7423, 8339, 17485, 17701, 37115, 41695, 88505, 108407, 153599, 230113, 542035, 767995, 1150565, 1996787, 4761569, 9983935, 23807845, 61900397, 309501985]

約数ペア:

[(1, 309501985), (5, 61900397), (13, 23807845), (31, 9983935), (65, 4761569), (155, 1996787), (269, 1150565), (403, 767995), (571, 542035), (1345, 230113), (2015, 153599), (2855, 108407), (3497, 88505), (7423, 41695), (8339, 37115), (17485, 17701)]