668839245

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{9973}}^1$

素因数の和:10261

約数の個数: 32

約数和(自身を含む): 1137514752

約数和(自身を除く): 468675507

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 263, 789, 1315, 3945, 4471, 9973, 13413, 22355, 29919, 49865, 67065, 149595, 169541, 508623, 847705, 2543115, 2622899, 7868697, 13114495, 39343485, 44589283, 133767849, 222946415, 668839245]

約数ペア:

[(1, 668839245), (3, 222946415), (5, 133767849), (15, 44589283), (17, 39343485), (51, 13114495), (85, 7868697), (255, 2622899), (263, 2543115), (789, 847705), (1315, 508623), (3945, 169541), (4471, 149595), (9973, 67065), (13413, 49865), (22355, 29919)]