11890360

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:308

約数の個数: 64

約数和(自身を含む): 28385280

約数和(自身を除く): 16494920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 43, 62, 86, 124, 155, 172, 215, 223, 248, 310, 344, 430, 446, 620, 860, 892, 1115, 1240, 1333, 1720, 1784, 2230, 2666, 4460, 5332, 6665, 6913, 8920, 9589, 10664, 13330, 13826, 19178, 26660, 27652, 34565, 38356, 47945, 53320, 55304, 69130, 76712, 95890, 138260, 191780, 276520, 297259, 383560, 594518, 1189036, 1486295, 2378072, 2972590, 5945180, 11890360]

約数ペア:

[(1, 11890360), (2, 5945180), (4, 2972590), (5, 2378072), (8, 1486295), (10, 1189036), (20, 594518), (31, 383560), (40, 297259), (43, 276520), (62, 191780), (86, 138260), (124, 95890), (155, 76712), (172, 69130), (215, 55304), (223, 53320), (248, 47945), (310, 38356), (344, 34565), (430, 27652), (446, 26660), (620, 19178), (860, 13826), (892, 13330), (1115, 10664), (1240, 9589), (1333, 8920), (1720, 6913), (1784, 6665), (2230, 5332), (2666, 4460)]