890809955

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{2213}}^1$

素因数の和:2316

約数の個数: 48

約数和(自身を含む): 1308420864

約数和(自身を除く): 417610909

約数列:

[1, 5, 7, 31, 35, 49, 53, 155, 217, 245, 265, 371, 1085, 1519, 1643, 1855, 2213, 2597, 7595, 8215, 11065, 11501, 12985, 15491, 57505, 68603, 77455, 80507, 108437, 117289, 343015, 402535, 480221, 542185, 586445, 821023, 2401105, 3361547, 3635959, 4105115, 5747161, 16807735, 18179795, 25451713, 28735805, 127258565, 178161991, 890809955]

約数ペア:

[(1, 890809955), (5, 178161991), (7, 127258565), (31, 28735805), (35, 25451713), (49, 18179795), (53, 16807735), (155, 5747161), (217, 4105115), (245, 3635959), (265, 3361547), (371, 2401105), (1085, 821023), (1519, 586445), (1643, 542185), (1855, 480221), (2213, 402535), (2597, 343015), (7595, 117289), (8215, 108437), (11065, 80507), (11501, 77455), (12985, 68603), (15491, 57505)]