1986366940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{233}}^1\times {\mathrm{431}}^1$

素因数の和:739

約数の個数: 96

約数和(自身を含む): 4483454976

約数和(自身を除く): 2497088036

約数列:

[1, 2, 4, 5, 10, 20, 23, 43, 46, 86, 92, 115, 172, 215, 230, 233, 430, 431, 460, 466, 860, 862, 932, 989, 1165, 1724, 1978, 2155, 2330, 3956, 4310, 4660, 4945, 5359, 8620, 9890, 9913, 10019, 10718, 18533, 19780, 19826, 20038, 21436, 26795, 37066, 39652, 40076, 49565, 50095, 53590, 74132, 92665, 99130, 100190, 100423, 107180, 185330, 198260, 200380, 200846, 230437, 370660, 401692, 426259, 460874, 502115, 852518, 921748, 1004230, 1152185, 1705036, 2008460, 2131295, 2304370, 2309729, 4262590, 4318189, 4608740, 4619458, 8525180, 8636378, 9238916, 11548645, 17272756, 21590945, 23097290, 43181890, 46194580, 86363780, 99318347, 198636694, 397273388, 496591735, 993183470, 1986366940]

約数ペア:

[(1, 1986366940), (2, 993183470), (4, 496591735), (5, 397273388), (10, 198636694), (20, 99318347), (23, 86363780), (43, 46194580), (46, 43181890), (86, 23097290), (92, 21590945), (115, 17272756), (172, 11548645), (215, 9238916), (230, 8636378), (233, 8525180), (430, 4619458), (431, 4608740), (460, 4318189), (466, 4262590), (860, 2309729), (862, 2304370), (932, 2131295), (989, 2008460), (1165, 1705036), (1724, 1152185), (1978, 1004230), (2155, 921748), (2330, 852518), (3956, 502115), (4310, 460874), (4660, 426259), (4945, 401692), (5359, 370660), (8620, 230437), (9890, 200846), (9913, 200380), (10019, 198260), (10718, 185330), (18533, 107180), (19780, 100423), (19826, 100190), (20038, 99130), (21436, 92665), (26795, 74132), (37066, 53590), (39652, 50095), (40076, 49565)]