1215205940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{26111}}^1$

素因数の和:26312

約数の個数: 48

約数和(自身を含む): 2763694080

約数和(自身を除く): 1548488140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 179, 260, 358, 716, 895, 1790, 2327, 3580, 4654, 9308, 11635, 23270, 26111, 46540, 52222, 104444, 130555, 261110, 339443, 522220, 678886, 1357772, 1697215, 3394430, 4673869, 6788860, 9347738, 18695476, 23369345, 46738690, 60760297, 93477380, 121520594, 243041188, 303801485, 607602970, 1215205940]

約数ペア:

[(1, 1215205940), (2, 607602970), (4, 303801485), (5, 243041188), (10, 121520594), (13, 93477380), (20, 60760297), (26, 46738690), (52, 23369345), (65, 18695476), (130, 9347738), (179, 6788860), (260, 4673869), (358, 3394430), (716, 1697215), (895, 1357772), (1790, 678886), (2327, 522220), (3580, 339443), (4654, 261110), (9308, 130555), (11635, 104444), (23270, 52222), (26111, 46540)]