19961190

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{863}}^1$

素因数の和:1133

約数の個数: 48

約数和(自身を含む): 52161408

約数和(自身を除く): 32200218

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 257, 514, 771, 863, 1285, 1542, 1726, 2313, 2570, 2589, 3855, 4315, 4626, 5178, 7710, 7767, 8630, 11565, 12945, 15534, 23130, 25890, 38835, 77670, 221791, 443582, 665373, 1108955, 1330746, 1996119, 2217910, 3326865, 3992238, 6653730, 9980595, 19961190]

約数ペア:

[(1, 19961190), (2, 9980595), (3, 6653730), (5, 3992238), (6, 3326865), (9, 2217910), (10, 1996119), (15, 1330746), (18, 1108955), (30, 665373), (45, 443582), (90, 221791), (257, 77670), (514, 38835), (771, 25890), (863, 23130), (1285, 15534), (1542, 12945), (1726, 11565), (2313, 8630), (2570, 7767), (2589, 7710), (3855, 5178), (4315, 4626)]