20571650

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{331}}^1$

素因数の和:467

約数の個数: 48

約数和(自身を含む): 42238368

約数和(自身を除く): 21666718

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 113, 226, 275, 331, 550, 565, 662, 1130, 1243, 1655, 2486, 2825, 3310, 3641, 5650, 6215, 7282, 8275, 12430, 16550, 18205, 31075, 36410, 37403, 62150, 74806, 91025, 182050, 187015, 374030, 411433, 822866, 935075, 1870150, 2057165, 4114330, 10285825, 20571650]

約数ペア:

[(1, 20571650), (2, 10285825), (5, 4114330), (10, 2057165), (11, 1870150), (22, 935075), (25, 822866), (50, 411433), (55, 374030), (110, 187015), (113, 182050), (226, 91025), (275, 74806), (331, 62150), (550, 37403), (565, 36410), (662, 31075), (1130, 18205), (1243, 16550), (1655, 12430), (2486, 8275), (2825, 7282), (3310, 6215), (3641, 5650)]