85855120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2663}}^1$

素因数の和:2720

約数の個数: 80

約数和(自身を含む): 221985792

約数和(自身を除く): 136130672

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 2663, 3224, 4030, 5326, 6448, 8060, 10652, 13315, 16120, 21304, 26630, 32240, 34619, 42608, 53260, 69238, 82553, 106520, 138476, 165106, 173095, 213040, 276952, 330212, 346190, 412765, 553904, 660424, 692380, 825530, 1073189, 1320848, 1384760, 1651060, 2146378, 2769520, 3302120, 4292756, 5365945, 6604240, 8585512, 10731890, 17171024, 21463780, 42927560, 85855120]

約数ペア:

[(1, 85855120), (2, 42927560), (4, 21463780), (5, 17171024), (8, 10731890), (10, 8585512), (13, 6604240), (16, 5365945), (20, 4292756), (26, 3302120), (31, 2769520), (40, 2146378), (52, 1651060), (62, 1384760), (65, 1320848), (80, 1073189), (104, 825530), (124, 692380), (130, 660424), (155, 553904), (208, 412765), (248, 346190), (260, 330212), (310, 276952), (403, 213040), (496, 173095), (520, 165106), (620, 138476), (806, 106520), (1040, 82553), (1240, 69238), (1612, 53260), (2015, 42608), (2480, 34619), (2663, 32240), (3224, 26630), (4030, 21304), (5326, 16120), (6448, 13315), (8060, 10652)]